Deludedgod's essay.
[i](I'm helping deludedgod to try to get some theists to respond to this.)[/i]
A few days ago I started a thread where a requested people to give me stupid myths of evolution. It was great and we assembled 30 things. Now, I realize that there are many theists who do not attack evolution, but the ones who do always beat the same dead horses. therefore, I have collated some of my evolution posts on this site as well as some old articles on evolutionary genetics I wrote, and assembled them into The fundamental axioms of evolution.
Theists, your challenge is to debunk this:
The axioms of Evolution
The statements of the average theist regarding evolution make it immediately clear to me that their understanding of evolution is roughly equivalent to a fish’s understanding of the game of chess. Therefore, to understand why they are completely wrong, you must first understand the axioms of evolution.
The first one is that organisms adapt to their environment through natural selection, meaning that the environmental factors both cull the herd and remove organisms with unfavorable traits, and propagate those with favorable traits. The mechanism for this is the second axiom: Evolution is brought about by genetic mutation. An organism cannot adapt to its environment per se. It is the genes that must adapt, and that process takes millions of years. The next axiom is that the determinate of what constitutes an advantage is the environment. The rest of it is really simple, Evolutionary models study this axiom because it is complex. An environment includes lots of factors like other animals, temperature, gas concentration, climate etc. etc. This axiom is the driver of evolution, the guide, Adam Smith’s invisible hand. Genetic mutation is random. It is up to the environment to nurture useful genes and ensure they get passed on, and to eliminate poor genes. This is the fundamental axiom of natural selection mechanisms. It is something that no theist I have yet encountered understands.
Therefore, we must understand the mechanisms of mutation and the functions of DNA.
DNA is made up of polymerated strings of bases, which are nucleotides bound to sugar-phosphate backbones. DNA has two functions:
Holds the code to create various proteins from amino acids
Regulating the rate of producing proteins: By definition, one gene is a string of nucleotides that codes for one protein
The language of DNA is base-pairs. DNA is entirely comprised of four molecules. Cytosine, Guanine, Adenine and Thymine. These are the nucleotides. The nucleotides are complementary. Like magnets, they will only fit to a certain opposite. G fits with C and A fits with T (A also fits with U, Uracil, but that is an RNA base). So there are only four possible base-pairs: CG, GC, TA and AT. But these four pairs will dictate every single protein imaginable.
There are four ways that DNA can innovate.
Intragenic mutation: Errors during mitosis can swap base-pairs around, creating new strings of bases, and a new gene
Segment Shuffling: Two different genes can recombine and form two new hybrids
Duplication error: Sometimes during mitosis, a parent cell will by accident only pass part of it’s genome to the daughter cell, thus it retains a redundant copy of a gene string. This copy is completely free to mutate based on random frequency probability.
Horizontal Transfer: During sexual reproduction, organisms exchange genes. If the organism is a diploid meaning that it’s offspring has the code of two parents, then it’s offspring will have a completely new genome, combing both parents. This is the most successful method of innovation.
There are two types of genes. Introns and exons, which have these separate functions. Exons code for proteins. Introns are mostly junk or redundant, but they flank all the exons. Sometimes they are just punctuation, dictating where a gene starts and stops, but their most important function by far is to regulate the speed of protein transcription, a mechanism we will look at it more detail later. Exons dictate how a protein will be assembled. They do this because a protein is essentially a string of amino acids or a polypeptide. Therefore, exons dictate the order of amino acids in a protein. They do this by representing each amino acid with a codon. A codon is three nucleotides. Three nucleotides make up an amino acid. There are 20 possible amino acids, but 64 possible codons, therefore, exons are highly sensitive. They are also sensitive because they are ordered very precisely. For instance, let’s look at a simple string of three codons in a gene: AGG CTT GCC. Now let’s assume that an extra base is accidentally inserted (Like a G for example). The new string would be totally different, it would look like this. GAG GCT TTG CC, so every base would be shifted down one, and the entire gene would change. This would be completely devastating. This is why DNA repair mechanisms quickly target such errors. On the other hand, Introns, which are not so sensitive or precisely executed, or are sometimes just junk or redundant, mutate based solely on random frequency. As there are 44 codons that don't correspond to an amino acid, these are used in introns. Therefore, the next axiom of evolution is that evolution is driven by the Introns. Obviously it is more complicated, Introns can become exons during shuffling/shifting, and exons can become Introns, and sometimes exons can be mutated harmlessly, so long as the mutation changes only a tiny chunk of the gene, but this axiom still applies.
Genetic drift drives evolution. Some mutations are good, some are bad, most do nothing, but through the endless cycles, organisms evolve. The analogy I like to use is the telemarketer. About 90% of people hang up on them, but the 10% who say yes make the enterprise quite profitable.
Genes which only have a regulatory role (like a mass of old paper, our genomes retain a lot of junk code) will mutate based on the random frequency probability. But a gene that codes for an essential amino acid will not mutate. When errors occur they are quickly repaired. Thus, throughout evolution, about 400 genes critical to all life have remained unchanged in three billion years. Such genes are called highly conserved genes. This is the common descent.
We now must look at the mechanisms of DNA innovation, and how they affect evolution. At the heart of evolution is mitosis. Every time a cell divides, its genetic material lines up and splits. As the DNA base pairs replicate, 6 billion bases have to go into the right place (at least for humans), this is really hard, the only way a nucleotide can recognize it’s counterpart is that the activation energy needed for them to bond is less than if incorrect nucleotides bonded, so if it takes place with an abundance of adenosine triphosphate, it is guaranteed some will end up in the wrong slots on the ribose-phosphate ring, thus forming new strings of genes. DNA controls protein synthesis. The proteins carry out every cellular function. When a protein is needed, the transcriptase enzyme for that protein is secreted, as this enters the cell’s nucleolus, it causes the chromosome containing the DNA to unwind, where a piece of single helix containing a particular string of base pairs is “cut” from the double helix by the enzyme. This piece is identical to the code of the protein. Using templated polymerization, free bases (a nucleotide bound to a sugar-phosphate) make the mirror image of this code, where the correct nucleotides are slotted in, A to T and C to G. Then the strand is peeled apart and the template is returned to the genetic code, where the new strand is ejected from the nucleus where RNA (differs only in one nucleotide and ribose instead of D-Ribose for the backing) called messenger ribonucleic acid (mRNA) is assembled from a second round of polymerization, the mRNA binds to a ribosome (a ribosome is a giant macromolecular protein assembling machine that just trundles along) in the endoplasmic reticulum, where it is run through it like a conveyer belt, as different tRNAs (transfer RNA) line up with the codons in order, bound to a specific amino acid, stitching them together before leaving the ribosome, creating the protein necessary for whatever function the cell needs to perform.
The next axiom we must understand is that phenotype depends on genotype and the genotype does not change very much. When I hear creationists talk of the incredible diversity of life, I laugh. What makes life remarkable is how similar it is. The greatest diversity in life is seen among the prokaryotes, the humble single celled bacteria. We have more in common with a mouse than an Escheria coli has in common with Mycoplasmodium genetalium. The phenotype refers to the trait. This is determined by external features and internal anatomy. Of course, today we understand that phenotype depends on genotype. The speciation variable is not that huge. A human shares 99% of his DNA with a chimpanzee. That means that 1% (5,000 genes) produces 5,000 proteins that the chimps do not have, or transcribes them at a different rate. We only differ in 2 amino acids (out of 22 known to life) but these two can create vast combinations of proteins. These proteins control advanced neurogenesis, hair follicle growth, skin collagen makeup, eye colour variables, hormone-stimulated growth, all the ways in which we differ from chimps. Evolution works with scaffolding. The vast majority of genes in all mammals are the same, the genes that control enzymatic response, angio and vasculogenesis, the genes that control immunological responses and stem cell arrangements, they control basic development of brain functions that all mammals have, they control metabolism, mitosis, apoptosis, sensory development, the development of spermatogenesis in male mammals and mammary glands in females. By far and large, the genome across the mammalian class is identical. Massive changes in phenotype are caused by a few changes in genes. Even with the simple banana, 50% of our genotype is identical. This groundbreaking work was done by Richard Dawkins, who wrote about the crucial part of the genotype in his book The Selfish Gene.
This axiom has a logical follow up: Small genetic changes can make massive phenotype changes. This is why the constant claims that “sometimes fossils are found in the wrong striations” is an idiot idea. In phenotype it may appear to be very different and cannot fit in the taxonomy, but now with recent advances in genetics, we can track tiny mutations with huge consequences, comparing genotypes with a keystroke. If the mutated gene in question sits atop a master chain, then a single mutation can make a huge change. For instance, in a petal flower, if a single protein is changed on the master chain, then a stem will grow in place of a flower.
Now that we understand the genetic mutation mechanisms, we must look at the next axiom. The mechanism of natural selection will nurture good genes and get rid of bad ones depending on how they affect reproductive capacity. Simply put, a useful trait will increase an organism’s survival chance, therefore it will reproduce more, therefore, the gene will become more prominent in the pool through generations. A bad gene on the other hand, will make it more likely for an organism to die out quickly without the chance to reproduce, and the gene will wane from the pool. This brings us to a mathematical axiom. The time taken for a gene to establish itself or die out depends on the Trait Advantage Gradient. Simply put, the more advantageous the trait, the more reproductive capacity and survival odds it bestows on it’s carrier, the fewer generations it takes to establish itself.
There is a good example of this for contemporary society. The survival advantage of trait is inversely proportional to the amount of time it takes. It is relatively easy to observe genotype transition today. For instance, in parts of Africa where malaria is most prevalent, the allele containing the single copy of sickle-cell anemia can be found in almost 100% of the population. Another good instance of this is common lawn grass. Consider dandelions, a totally nuisance type of weed. As people of suburbia ruthlessly take their lawnmowers to the grass, the dandelions that happens to have genetic combinations that inhibit it’s Auxin growth factors find it useful because they are far more likely to survive, too short to be cut by the blades. These pass their genotype to their children who in turn will be unusually short and survive the lawnmower blades while their tall counterparts perish and in time, a new species, the lawnlion, may arise.
This brings us to the next axiom: Natural selection has two necessary mechanisms
Mechanism 1: Darwinism: This means that individuals who have unsuccessful traits will not survive to reproduce and therefore be eliminated from the pool. This leaves only the advantageous genes.
Mechanism 2: Genetic Innovation: At the same time, organisms obviously must improve because if there was nothing to improve, there would be nothing to cull. Therefore, organisms can experience advantage mutations, and this is how we evolve.
Mechanism one is definitely favored by evolution. It is easier to destroy than create. Mechanism two takes vastly more free energy from the environment, but it is absolutely necessary, otherwise, we would all be little single celled organisms.
This brings us to the final set of axioms: Evolution works on individuals not species. This is one so many people don’t understand. For instance, I often hear theists say synchronized random mutations do not exist in nature, then they uphold this as proof of intelligent design/creationsim. They do not understand the fundamental axiom of genetic mutation every mutation has a prototype. We’ve been through this already. An organism has an advantageous mutation. It reproduces more than the other organisms because of this. The mutation gets passed to his children, they reproduce more because of it, they pass it to their children…mutations are not synchronized. With each generation, it will become more and more prominent in the pool, until it is universal. This gives the illusion of genetic synchronicity.
This brings us to another stupid theistic argument: I often hear the argument, “if humans evolved from chimps, why are they still here”. A foolish argument. We can apply the previous axioms to this. Evolution by gene drift works on individuals, not species. If the new combination is successful, the individual will have a greater survival chance and reproduce more, passing the new gene to his children. As long as a gene exists in the pool, the individual and his offspring have the chance for further advantageous mutations to occur (and occur they will, for mutation happens during every single undergoing of mitosis, which happens millions of time per day). The survival of an organism matters little so long as s/he had reproduced, is the gene that matters. An old species does not “disappear” if a new one arises. It might disappear only if the new species is superior and destroys its predecessors (early humans most certainly undertook genocide against the Neanderthals).
This brings us to final axiom speciative divergence occurs when a mutation prototype’s offspring differ so much that the gametes will no longer fuse with those of the prototype’s species. This can happen quickly or very slowly, it depends on karyotype.
And, finally, the difference between micro and macroevolution. Theists often say: I believe in microevolution, I can see small changes in an organism, but I refuse to believe in macroevolution, the idea that organisms can completely change. This is an idiotic argument which uses subjective wordplay. At what point do we decide whether the cumulative mutation has been so much that it is macroevolution? If the organism changes color? During a speciation split? If it grows another eye?
In fact, macroevolution as so many successful mutations occurring within a pool that the phenotype of the organism is totally altered. This is essentially the same as microevolution, just over a longer time frame. DNA changes are not a microevolution topic. This is an extremely common misconception. Genes are very powerful, and they can easily massively alter the phenotype of an organism. You seemed to define macroevolution as speciation. That is, that the cumulative genetic change in an individual and their descendants has been large enough that the gametes no longer match with the original species of the prototype, that is the very first organism of a species that carried a mutation with a slight advantage, which over many hundreds of thousands of years and generations, eventually became so much that the gametes will no longer fuse with those of the original species, if it still exists.
The trick to macroevolution is a probability function called cumulative mutation. A prototype organism is bestowed with an advantageous mutation. He has increased survival probability and passes it on to his children. He reproduces more than the other organisms of the same species because of this advantage. So do his children, and the gene becomes more and more prominent in the pool. Since there are more of this mutated version of the organism of the sample, the probability function states that there is a higher likelihood that one of the mutated children will chance upon an advantage mutation, and then...the cycle continues. Go through this 200 times, and the organism will be unrecognizable. This is macroevolution.
The next axiom of evolution is that all functions must be autoregulatory. Interestingly enough, this is more than enough proof to debunk the idea that God created life. Any engineer would snicker at the sloppiness and inefficiency of the biosystem. Adenosine triphosphate synthesis during respiration takes about 200 steps, when it could reasonably be done in about one third that. There are major nerves which for some reason take huge wasteful loops before reaching their destination. The reason for all this is that biomechanisms are autoregulatory. That means they produce molecules that will automatically perform the necessary functions. A good example is the amphipathic bilayer of the cell membrane. This is not a very well designed structure, it has poor integrity. A designer would laugh at it. But evolution utilizes it because amphipathic molecules will automatically form a membrane. Try it yourself. Get a hydrocarbon chain like oil, mix it with a water soluble phosphorylate, add water and...it should form an impermeable ring. That is a eukaryotic cell membrane (if you are interested, the substance that makes it is cholesterol). The molecules automatically arrange themselves correctly. Every biological functions does the same thing.
A designer would choose far better materials. Evolution has no foresight, no objective. It is a driving force that reeks of impatience. A benefit now may be worthless in a million years. Intelligent Design (The idea that life was too complex to arise by evolution) likes to use the Watchmaker analogy, that if you found a watch, you wouldn’t assume it assembled itself. But evolution is a blind watchmaker. It cannot see what it is assembling, it tries different parts, but if it hears the tick, it knows it works.
Another example of the autoregulatory process is the fundamental autocatalytic cycle of life:
What makes life remarkable is that it needs no designer, it is an autocatalytic cycle, bound to happen by the laws of chemistry, fixed in the nature of molecular interaction. It’s processes are self assembling, it’s mechanisms self-regulating. The autocatalytic cycle looks like this
DNA replicates through templated polymerization, assembling polynucleotides out of free nucleotides
The polynucleotides are used to assemble polypeptides out of amino acids
The polypeptides catalytic function are used to replicate DNA through templated polymerization
And the cycle continues
This concludes my piece on evolution.
[i]
[b]Note:[/b] You can also check out [url=http://www.rationalresponders.com/forum/yellow_number_five/evolution_of_life/4756]Myths about evolution.[/url][/i]
thanks
Bump.
Another bump.
Hit.
Wow, thats long and amusing. Hm. I doubt if any theists would qoute and reply.
And if they do, it will be about how some of the things in the essay have been proven to be fake/false, when in fact...they haven't.
Stupid morons.
The theists you argue with must not be very observent of the current arguments.
The current charge against evolution is not that some mutations are good, microevolution does not occur, etc. The argument is information theory.
All mutations, good, bad, ugly, whatever, either destroy information or do not add to it. If life started as self-replicating molecules, then they would have needed a large amount of information added to become bacteria.
The problem is that no mutation has ever been observed that adds information. The closest is a mutation that copies information, not adds it, plus an information addition is against the law of entropy. Molecules tend to break down on their own, not add to.
Good post, egann. I was going to post about the law of entropy.
the information theory argument rests of fundamental confusions of how scientists define Genetics as carrying information. I can simply take this from a piece I wrote called 24 answers to creationist nonsense:
Fallacy #9 (Continuation of macroevolution error): New genetic information cannot arise.
This is totally ridiculous. The assertion goes like this. Creating a new function like a wing or an eye would require the introduction of new genetic information, mutation and natural selection only changes pre-existing information”.
Adding information in DNA terms is done by the process of templated polymerization, whereby strands produce complementary strands by nucleotide bonding whereby the nucleic acids can recognize their VDW bond counterpart by the activation energy needed.
Changing information occurs when a mutation occurs by one of the mechanisms mentioned above (page 2)
The problem with this statement is that DNA genomes are extremely redundant. 91% of the human genome is redundant, if you are interested. So changing one copy will add new information. Because most of the time the polymerization works out fine. Imagine it like a library. There is only one copy of each book. You remove one book and replace it with a different, new book. Are you adding information? No. You are changing information. This is the crux of the creationist argument. But imagine you have twelve copies of each book. You replace one copy of one book with a different, new book. Now you are adding new information because the pre-existing information is still there in the form of 11 other books.
DNA defines information in a completely literal chemical makeup, with precise order of atoms and molecules representing codon order. This can be seen in the transcription cycle:
For DNA, nothing complex is required. A set of reactions that reads DNA is based on literally copying it. The key thing about DNA is that the nucleotides literally represent amino acids. One codon is identical to an amino acid. This is translation/transcription. I'll go through it step by step again.
1. A stimulus from the cell membrane causes proteins to bind to the introns flanking the necessary exon, this causes the string to unwind. This is initiated by transcriptase enzymes
2. Once unwound, the string splits
3. Through templated polymerization initiated by polymerase enzymes, free bases attach to the complementary string, producing the identical string (that which is precisely identical to the protein in question in terms of codon order), which is then tidied up using spliceosomes and ligases, enzymes that cut through the introns and glue the exons together to make the complete string.
4. The Free bases are RNA bases and attach to form the protein-identical RNA base. The reason for this is that a ribosome cannot read DNA, it must be converted into RNA. The only difference is that it has ribose instead of deoxyribose and uracil instead of thymine, but since nothing else can read thymine, that is an important difference. This string is called mRNA which is ejected from the nucleus.
5. tRNA strings which represent one amino acid bind to their corresponding amino acids on one end. On the other end they have an anticodon, which represents the base string identical to the amino acid.
6. The mRNA is captured by a ribosome, a giant macromolecular protein. The mRNA is lined up along it. The anticodon on the tRNA automatically binds to the codons on the mRNA. This forces all the amino acids to line up. They thread together automatically, which causes the now unnecessary tRNAs to detach and leave the ribosome. When the protein is finished, it is automatically detached.
Fallacy #13 The Second Law of Thermodynamics
An even worse fallacy than irreducible complexity is using The Second Law of Thermodynamics to disprove evolution, that has got to be the worst understanding of science in history. The law is:
-All systems tend to progress towards entropy
The premise of this law is that essentially all useful work will release wasted energy in the form of heat energy, which is almost impossible to reconvert into a useful form of energy again (like chemical potential). But a system which receives constant influx and outflux (a system which is not closed) will not necessarily progress towards entropy. But even the Earth itself is not a closed system. There are very few self contained systems. Almost everything receives energy from something else because everything gives off radiation heat.
Also, the implication of this ridiculous fallacy is that not that evolution cannot be sustained but rather life itself because it is complex. A seed growing into a tree supposedly breaks the second law, this is ridiculous. Even if there was a God who engineered life (there is not) there are no ad hoc little workmen running around organizing life. Life is a set of autoregulatory processes that can sustain itself. So even if we make the baseless assumption that God created life, the reproductive process where life arises from old life is natural, not supernatural. If the second law of thermodynamics extended to open systems, every function of life would be impossible, not just it’s evolution. There is nothing about it that breaks the thermodynamic law because cells take in free energy and use adenosine triphosphate to correct the entropy.
[quote= "American Atheist"]There are four ways that DNA can innovate.
Intragenic mutation: Errors during mitosis can swap base-pairs around, creating new strings of bases, and a new gene
Segment Shuffling: Two different genes can recombine and form two new hybrids
Duplication error: Sometimes during mitosis, a parent cell will by accident only pass part of it’s genome to the daughter cell, thus it retains a redundant copy of a gene string. This copy is completely free to mutate based on random frequency probability.
Horizontal Transfer: During sexual reproduction, organisms exchange genes. If the organism is a diploid meaning that it’s offspring has the code of two parents, then it’s offspring will have a completely new genome, combing both parents. This is the most successful method of innovation.
There are two types of genes. Introns and exons, which have these separate functions. Exons code for proteins. Introns are mostly junk or redundant, but they flank all the exons.[/quote]
1. all of these are recombining already attained information. Duplication errors almost never survive past the embrionic state, and Horizontal transfer only recombines present alleels.
2. All of these require a diploid or greater genome with true sexual reproduction (with the possible exception of segment shuffling, can you cite a source on that?) So we are left with how diploid eukariotic sexual reproduction can possibly arrise from prokariotic bacterial simple gene exchanges. Natural selection says that any bactreria with an added copy of it's own genome will probably be selected out because of it being inefficient. (The same thing with an incomplete flagellum)
3. Introns are used. They are recombined with different extrons to form different proteins. The Snrps cut out different introns depending on what protein needs to be synthesized.
Generally, biological functions are very efficient. The most inefficient process in the whole human body is ATP synthesis, which is 40% efficient. Concidering that the best humans can do in power plants is 33% efficient, that's still pretty good.
We will continue to say new information cannot arise out of mutation until a difinitive mutation produces new information. Calling us names and saying that a long list of mutations [i]can[/i] give new information isn't enough. If 4.5 billion years is all it took for the information in the bacterial genome to self-assemble, there should be plenty of specific mutations that increase information rather than just recombining present information.
EDIT: The second law of thermodynamics:
Quantitatively, entropy, symbolized by S, is defined by the differential quantity dS = δQ / T, where δQ is the amount of heat absorbed in an isothermal and reversible process in which the system goes from one state to another, and T is the absolute temperature at which the process is occurring.[3] Entropy is one of the factors that determines the free energy of the system.
Exactly: synthesis requires a reduction in entropy because all synthesis reactions absorb energy, so in a very real sense entropy is a measure of chaos in a system as well as the change in tempreature.
Simple molecules, like carbon dioxide, water, and even oxygen tend to have less energy than complex molecules such as glucose. Expecting a complex sugar to form in the presence of smaller molecules is, literally, like building a house of cards in a strong breeze. Molecules are bouncing all over it, and it is far more likely to break down any complex molecules rather than create them.
You litterally are expecting a ball to roll uphill. Take any collection of simple molecules, throw in some sand, and make them form something more complex than a uniform polymer without putting in any energy except heat. Heck, even polymers can't be made like that. An organic peroxide is needed to start polimerization, and that's energy input.
In other words, show an organic synthesis reaction that releases energy. They aren't common.
1. all of these are recombining already attained information. Duplication errors almost never survive past the embrionic state, and Horizontal transfer only recombines present alleels.
Doesnt matter, of course it recombines pre-attained information. That is the whole premise of genetics, new genes arise out of old ones. Read the paragraphs I wrote on transcription and information theory to understand why. Also, Duplication error is mitosis not meiosis, and horizontal transfer does not do that, you are thinking of vertical transfer, which, while not making new genes, promotes genetic variance, necessary for evolution.
2. All of these require a diploid or greater genome with true sexual reproduction (with the possible exception of segment shuffling, can you cite a source on that?) So we are left with how diploid eukariotic sexual reproduction can possibly arrise from prokariotic bacterial simple gene exchanges. Natural selection says that any bactreria with an added copy of it's own genome will probably be selected out because of it being inefficient. (The same thing with an incomplete flagellum)
No sir, prokaryotes have a trick known as horizontal transfer which Eukaryota cannot do. You are thinking of vertical transfer. Also, most genetic errors occur during mitosis, something prokaryotes do far more often than Eukaryotes.
The origin of Eukaryota from the protocells remains somewhat a mystery but we do know it was formed out of the punctuated equilibrium by atmospheric gas changes during the Precambrian. Studies have revealed that promiscuous gene exchange via horizontal transfer between Eubacteria and archaea developed the Eukaryota genome. The thing molecular biologists are focusing on now are the ESPs (Eukaryota specific proteins)
Generally, biological functions are very efficient. The most inefficient process in the whole human body is ATP synthesis, which is 40% efficient. Considering that the best humans can do in power plants is 33% efficient, that's still pretty good.
I didn't mean inefficient in terms of physics, I meant it in terms of biological structures.
We will continue to say new information cannot arise out of mutation until a difinitive mutation produces new information. Calling us names and saying that a long list of mutations can give new information isn't enough. If 4.5 billion years is all it took for the information in the bacterial genome to self-assemble, there should be plenty of specific mutations that increase information rather than just recombining present information.
I did not call you names. You have not responded to my second post about information theory. And perhaps you should study prokaryotes as I have, they have vastly more genetic diversity than Eukaryotes.
And for the second law, I point out again that if that were actually true for open systems, life would be impossible, not just it's evolution.
You didn't call me names. I was cutting the insults from the two word posters before they came.
[quote=deludedgod]Doesnt matter, of course it recombines pre-attained information. That is the whole premise of genetics, new genes arise out of old ones. Read the paragraphs I wrote on transcription and information theory to understand why. Also, Duplication error is mitosis not meiosis, and horizontal transfer does not do that, you are thinking of vertical transfer, which, while not making new genes, promotes genetic variance, necessary for evolution. [/quote]
I did. That (new genes arising out of old genes) is an [i]assumption[/i] of Darwinian evolution. If it could be proven, I would not be arguing with you about science, but metaphysics.
[quote=deludedgod]Also, most genetic errors occur during mitosis, something prokaryotes do far more often than Eukaryotes.[/quote]
Term nagging: Bacteria do not go through mitosis at all. Mitosis requires a nucleus and protein spools. Bacteria just have fission because their genes never assemble into chromosomes like diploid eukariotes.
I am not sure about the mutation rates of fission as compared to mitosis, but as everything is more hectic with bacteria, I would bet that its higher.
[quote=deludedgod]And for the second law, I point out again that if that were actually true for open systems, life would be impossible, not just it's evolution.[/quote]
I fail to see why. All that would suggest is life could only have not arisen from non-life. Correct me if it is wrong.
[quote=deludedgod]
The problem with this statement is that DNA genomes are extremely redundant. 91% of the human genome is redundant, if you are interested.
[/quote]
I am not sure where this statistic comes from, but it feels a bit low.
After crossing over occures in the zygote, all of the cells have 2 complete copies of highly similar -if not identical- chromasome sets. Then there is the redundancy of the code itself, which makes me eyeball the redundancy at more like 150-200%.
Might I remind you that redundancy makes it [i]harder[/i] for mutations to have an effect (especially, but not limited to point mutations.) The cell constantly error checks for genetic mutations (which is why the system is redundant.)
So why would a mutation inhibiting system evolve? Doesn't this translate to genetic stagnation? Did we evolve to this point, suddenly develop a mutation inhibitor, and our evolution is at an end? Why is it that just about all other eukariotic life forms have them as well? Did we all develop mutation inhibitors simultaneously? Talk about a lucky break.
I fail to see why. All that would suggest is life could only have not arisen from non-life. Correct me if it is wrong.
The topic of entropy and life has been studied for decades. Life feeds on a reverse system called negentropy, where being expressed by an axiom of the second law of thermodynamics called Gibbs Free Energy. I suggest you put more study into entropy and life. It is an extensive topic in biophysics.
You still have not responded to my information theory post.
Term nagging: Bacteria do not go through mitosis at all. Mitosis requires a nucleus and protein spools. Bacteria just have fission because their genes never assemble into chromosomes like diploid eukariotes.
Sorry, early and no coffee. correct, bacteria lack centrioles. Actually, fission creates more opportunity as the DNA is not packaged in closed compartments.
I am not sure about the mutation rates of fission as compared to mitosis, but as everything is more hectic with bacteria, I would bet that its higher.
It is.
I did. That (new genes arising out of old genes) is an assumption of Darwinian evolution. If it could be proven, I would not be arguing with you about science, but metaphysics.
I suggest you study orthologs, paralogs and homeoboxes, as good proof of genetic origin from predecessors
It can. Depends, of course, which one you are looking for.
horizontal transfer: Easily proven. We have lots of pretty pictures from SEM
Intragenetic mutation: Easily proven again, now that we can decode genomes
Recombination: Again, proven by genome decoding
Duplication: This one we can, again, phyiscally see happening
negentropy: Schrodinger's theory that living creatures export entropy to mantain internal order.
In other words, negentropy is the physical effect of information and energy on a local system.
This makes entropy equivilate to the old definition: a measure of the disorder of a system, usually measured by a change in temperature because disorder (and temperature) rises when pressure increases, particle sizes decrease, or a more compact form of matter becomes less compacted (melting, evaporating, subliming, etc.)
Entropy can be locally defeated if energy is put into the system and particles embodying entropy are expelled (in other words, complex, low entropy, molecules (carbohydrates, lipids, etc.) broken down to form high entropy waste products (carbon dioxide, water, etc.) or the absorption of much ambient energy to create large molecules (photosynthesis making ATP out of ADP, the energy absorbed is significantly more than the energy difference between the two.
Now let's assume that negentropy somehow also implies information growth of the genome (even though this contradicts information theory: new information must be intelligently assembled or derrived from existing information, this is supplimental information.) You still have to accept the astronomically small probabilities of an evolvable life form being created in the first place that creationists -and even evolutionists- have been computing for decades.
[i]Now let's assume that negentropy somehow also implies information growth of the genome (even though this contradicts information theory: new information must be intelligently assembled or derrived from existing information, this is supplimental information.) You still have to accept the astronomically small probabilities of an evolvable life form being created in the first place that creationists -and even evolutionists- have been computing for decades.[/i]
You still have not responded to my post refuting the confusion of genetic encoding with information theory.
growth of the genome is meaningless in your terms. growth is accomplished by polymerase functions. Change is accomplished by mutation. If you are still confused, read the post on information theory. It does not have to be intelligently assembled. It is derived from existing information.
Furthermore:
Fallacy #15 Abiogenesis
One of the greatest mysteries in all of science is how the first life arose. Of course, here it is important to define life. Life is a set of autocatalytic chemical processes aimed at reproduction of the self. Unlike other chemical complex systems like crystals, biochemical molecules are remarkable for the reproductive capabilities. I suppose, by that definition, that Ribonucleic Acid is probably life. It is the building block from which all life was originally based, before being gradually phased out by DNA, although obviously RNA still retains a critical place in biochemistry.
The attempt to answer that has come in the form of a hypothesis known as abiogenesis . How did the organic polymerated strings of nucleic acids or indeed any necessary function of life arise? Whoever answers it will probably receive a Nobel prize from every field imaginable, although I imagine the awards will have to go to a great many people. There are numerous hypotheses out there, autocatalysis, RNA world, lipid-based world.
All The hypotheses begin with the Earth’s hydrogenesis, the formation of the oceans. Due to the polar nature of water, dissolving free ions with its slightly polar configuration, it is an ideal “primordial soup” to use the phrase, for the formation of simple self-replicating abiotic molecules. Due to the atmospheric difference of the Earth at the time, the Primordial Soup was very different. It was much warmer, an ideal incubator for the development of simple biomolecules. Experiments have shown that these simple amino and nucleic acids can arise in a hydrated anoxic environment provided there is sunlight. Molecules like Cytosine and Adenine are reasonably simple and will reassemble. This is not probable, but considering the vast size of the ocean and the span of time, the Law of Averages states it will eventually happen. The first abiotic reassembling molecules will vastly increase the chance that they will form life components like RNA; this is the basis of the RNA world Hypothesis.
Regarding the origin of life and RNA...evolution cannot answer that. The theory does not extend that far back. From the moment RNA appeared on Earth, evolution provides a god-free explanation. At the moment there are hypothesis on life's origin, including abiogenesis, Panspermia...and god. All three are assertions, so none have weight. However, science operates on an Occam’s Razor principle regarding hypotheses. Panspermia would require you to assume the existence of alien life that came to earth, the probabilities of which are astronomical. God requires you to believe that there is a extramaterial out of space and time deity who infused the primordial soup with RNA. The odds again, are astronomical. Abiogenesis on the other hand...merely requires you to assume that ancient molecules obeyed chemical law. Thus it is the most widely assumed.
But really it is a non-issue. Evolution does not deal in primordial chemistry. Primordial chemists deal in primordial chemistry.
[quote=deludedgod]You still have not responded to my post refuting the confusion of genetic encoding with information theory.
growth of the genome is meaningless in your terms. growth is accomplished by polymerase functions. Change is accomplished by mutation. If you are still confused, read the post on information theory. It does not have to be intelligently assembled. It is derived from existing information.[/quote]
:? I couldn't find the information theory post immediately, being on a schedule, I will move on and let you redirect me later.
Allow me to rephrase my position. Mutation (point or otherwise) creates new aleels or a new reordering of the genome. Usually the latter is fatal or extensively debilitating.
What you are calling "new information" is, according to your own position, modified old information. For an introduced gene (not a new alleel, but a new gene being introduced into the system to constitute net information growth) to function, it must be introduced at the right point, with not just a copy of the old information, but functional application of new information that must work or natural selection will select them out.
Occam's Razor+ natural selection= loss of genetic information, not gaining it. This is not irreducable complexity, it is raw inefficiency. The new gene will almost certaintly not last long enough to be point mutated upon enough for it to work. It is theoretically possible, but at our modern rate of mutation rates, 4.5 billion years is many hundreds of orders of magnitude too short a time period for information growth.
[quote=deludedgod] Regarding the origin of life and RNA...evolution cannot answer that. The theory does not extend that far back. [/quote]
No, it doesn't extend that far back. You outright assume it.
Might I remind you of my pointing out that genetic redundancy (which you said was 90%, so any mutation in the redundant segment is new information) was a prevention of mutations rather than an assistance to it. The redundant information is used as an error check to eliminate mutations wherever possible, not as a cesspool for mutations to accumulate.
[i]Allow me to rephrase my position. Mutation (point or otherwise) creates new aleels or a new reordering of the genome. Usually the latter is fatal or extensively debilitating.[/i]
The operative word being usually.
[i]What you are calling "new information" is, according to your own position, modified old information. For an introduced gene (not a new alleel, but a new gene being introduced into the system to constitute net information growth) to function, it must be introduced at the right point, with not just a copy of the old information, but functional application of new information that must work or natural selection will select them out.[/i]
Not necessarily. Most mutations dont do anything. Only bad mutations are selected out.
[i]Occam's Razor+ natural selection= loss of genetic information, not gaining it. This is not irreducable complexity, it is raw inefficiency. The new gene will almost certaintly not last long enough to be point mutated upon enough for it to work. It is theoretically possible, but at our modern rate of mutation rates, 4.5 billion years is many hundreds of orders of magnitude too short a time period for information growth.[/i]
What? There are two types of genes. Introns and exons, which have these separate functions. Exons code for proteins. Introns are mostly junk or redundant, but they flank all the exons. Sometimes they are just punctuation, dictating where a gene starts and stops, but their most important function by far is to regulate the speed of protein transcription, a mechanism we will look at it more detail later. Exons dictate how a protein will be assembled. They do this because a protein is essentially a string of amino acids or a polypeptide. Therefore, exons dictate the order of amino acids in a protein. They do this by representing each amino acid with a codon. A codon is three nucleotides. Three nucleotides make up an amino acid. There are 20 possible amino acids, but 64 possible codons, therefore, exons are highly sensitive. They are also sensitive because they are ordered very precisely. For instance, let’s look at a simple string of three codons in a gene: AGG CTT GCC. Now let’s assume that an extra base is accidentally inserted (Like a G for example). The new string would be totally different, it would look like this. GAG GCT TTG CC, so every base would be shifted down one, and the entire gene would change. This would be completely devastating. This is why DNA repair mechanisms quickly target such errors.
On the other hand, Introns, which are not so sensitive or precisely executed, or are sometimes just junk or redundant, mutate based solely on random frequency. As there are 44 codons that don't correspond to an amino acid, these are used in introns. Therefore, the next axiom of evolution is that evolution is driven by the Introns. Obviously it is more complicated, Introns can become exons during shuffling/shifting, and exons can become Introns, and sometimes exons can be mutated harmlessly, so long as the mutation changes only a tiny chunk of the gene, but this rule still applies.
Now that you understand genetic mutation mechanisms, this can be applied to how advantage mutation works.
Intron mutation can change more than just transcription rate. It can change the protein fold. So, in all likelihood an organism won’t end up with one enzyme or protein morphing into another, but an identical polypeptide folding into a new enzyme. Only exon mutation will "change" an enzyme because it will change some codons, thereby changing the protein string order. From a probability standpoint, the odds of gaining a useful mutation because you can fold a protein in a new way vastly outweigh the possibility that you can get from producing a new protein. Mutations can have chain reactions on the cycle. Same string but different protein will produce a different catalytic function therefore will change another intron somewhere else down the line, or perhaps change an exon and make a new protein which, because it is bound to the cycle, not random, will be useful. If mutations operated independently, and outside the cycle, evolution would never get off the ground.
It can be understand like this:
A useless mutation occurs: Nothing happens
A bad mutation occurs: The cell dies, or the error is targeted because it is disrupting the cycle
A good mutation occurs: A new protein, rate of transcription or fold function is made. This is useful. It alters the cycle, producing a knock on effect.
For a mutation to occur which can be preserved, junk must be turned into non-junk. It is really easy to play with the introns. The prokaryotes that are the basis of life have almost no junk DNA. It is evident that such small organisms evolved to have conservative genomes. They have useful introns. It may seem extremely unreasonable in terms of probability but DNA mutates all the time. If the shift is Duplicate error, a popular method, then the gene advantage can be conserved, because it is a redundant piece. Evolution is just mathematics. As long as a gene exists, it will fight to survive...at the chemical level there exists a ruthless primal battle in which the best of the best are constantly being selected, and the weak crushed. The only phenotype affecting genes that are conserved are the ones that affect reproductive capacity. That will cause it to be conserved and cumulatively mutated upon. This is the mathematics of evolution.
Genetic drift drives evolution. Some mutations are good, some are bad, most do nothing, but through the endless cycles, organisms evolve. The analogy I like to use is the telemarketer. About 90% of people hang up on them, but the 10% who say yes make the enterprise quite profitable.
The statement advantage mutation is impossible is a confusion of possibility and probability. Advantage mutation almost never happens…the operative word being ALMOST. But if you have mutations working at quantum speed and three billion years on your hand, your odds improve dramatically.
he knock-on effect is a good demonstrator. All proteins do only one thing, they act as a catalyst for the body's catabolic chemical reactions. Without proteins, you would have to set yourself on fire to release enough energy to perform respiration. This is obviously not practical. All proteins lower the activation energy for a chemical reaction by providing an active site which works like a lock and key model. The chemical fits into the protein receptor and is broken into smaller molecules. Therefore, one can imagine that a different fold will mean that protein will have a different catabolic function which could offer a significant advantage if it allows an organism to synthesize a new chemical. The most effective way to do this would probably be base-pair swap exon mutation, which will only change a small chunk of an exon. Normally, the amino confirmation will predispose a protein to fold in a certain way, although this process is not understood (that would be the Levinthal Paradox). Natural selection, it seems, has selected a chemical interaction set which encourages the protein to fold, because in it's primary and secondary state, it is useless.
Protein folding is also a useful demonstrator of life's autoregulatory weirdness. They fold into elegant shapes after being translated from mRNA only for a tiny piece of it to serve as an active site. The hemoglobin molecule is the bizarre case and point. It is a colossal macromolecular protein snugly wrapping a single haemite (iron). This is somewhat akin to building a nuclear powered transformer to plug in a lamp.
There are 100 nucleic acids and 300 amino acids that exist in nature, we use only 4 and 22. The sugars and phosphates snap together to form the base backbone in the exact same way that nucleic acids bond together. From a chemical standpoint, the phosphorylate-saccharide (ribose)-nucleic acid structure is sensible. There are 100 nucleic acids and 300 amino acids that exist in nature, we use only 4 and 22. There is no reason why life could not be based on other amino acids and nucleic acids. The sugars and phosphates snap together to form the base backbone in the exact same way that nucleic acids bond together. From a chemical standpoint, the phosphorylate-saccharide (ribose)-nucleic acid structure is sensible.
We can look at the knock-on effect with respect to folding like this:
1) A small mutation changes a few codons
2) A different protein is made with a new fold
3) This catalyzes a chemical in a different fashion, most likely a new product
4) This new product has a different effect on the cell membrane receptors, which keep up the autocatalytic cycle. It causes a different command to be followed, as transcription is driven when a stimuli causes a protein to bind to the introns that flank the necessary exon.
Transgenic technology has revealed that changing a gene can start making a gene down the line do bizarre things. Why? Simple. Genes can control each other. The knock-on is established by introns controlling exons which in turn produce proteins which control introns which control exons which… you understand. If evolution operated like individual genes doing individual things, it would not get on the ground.
Knock-on effects work all across the genome. After all, what do genes do, they produce proteins, or they regulate the production of proteins. What do those proteins do? Well...everything: The big functions are of course:
-Catabolism of biochemical families (nucleotides, coenzyme factors, carbohydrates)
-Anabolism (glycogen synthesis, lipid synthesis)
-RNA synthesis control
-Ion channels and membranes (cell membranes, nerve membranes, particularly oligolipoproteins for myelin) , transport mechanisms including inorganic transport, ion flux and carrying
-Exocrine systems and secretory pathways/chemical production
-endocrine systems and hormone control Autocatalysis
-Maintenance of cell signal transduction and energy release metabolic pathways
The thing to notice about all of these is they are all dependant on biochemical triggers. You change one thing, you change a cascade. Making a new ion channel will change the electrochemical gradient or allow a different material influx, which will affect how protein receptors bind to introns. A new ion channel could trigger a hitherto unused intron. There are so many complex factors to genetic evolution, it is not a clear cut process.
The discovery of genes was probably one of the most important in the history of science. Before genomic sequencing, the human body or indeed any organism or indeed a single celled organism seemed unbearably complex. Of course, with the advent of new molecular biology techniques that was swept away. Everything can be explained in terms of metabolic pathways building macromolecules with remarkable properties. There are only thirteen families of Biochemicals (Terpenoids, Flavanoids, Carotenoids, Polyketides, Alkaloids Peptides, Polypeptides, Amino Acids, Nucleic Acids, Steroids, Enzyme Cofactors, Carbohydrates, Lipids and Tetrapyrroles). Everything can be explained in terms of these, and the manufacture, regulation, secretion and synthesis of these…can be explained by DNA. This explains everything from simple sugar metabolism all the way to the Progenitor…the stem cell with the potential to make a human body.
With regard to probability, think about this. Things work at quantum speed at the size of molecules. Cells are always undergoing mitosis, copying, shifting, transcription, translation, receiving and processing chemical signals. Imagine the genome as a supercomputer and the environment, the determinate of what constitutes a genetic advantage that causes more reproduction like the password. The supercomputer has to guess the password. It does so by brute force. Go through the permutations. Mutations are happening so fast, so often, some are being chucked out in a blur, some are useless and ignored, the ones that are chucked out are automatically repaired because they are getting in the way, and then finally, the computer finds a permutation. Since this is not a disruptor, it is retained in much the same way that a useless mutation would be, passed on to children, who reproduce more...etc etc.
The environment is always playing around with genes, it just takes millions of years to nurture the ones it likes.
In terms of probability, evolution is actually extremely generous. Think about this. There are 25 speciative links between monkey (the pan genus) and man (Homo Sapiens). Every Hominid before us went extinct. We killed them all, that is what happens when an organism is too successful. Man may be the most genocidal creature nature ever produced, but I digress. There are 5000 different genes in the monkey/man split. The absolutely most closely related species differ in 200 genes. 200 genes is not enough to give massive difference in phenotype, but it is enough to prevent interbreeding. Anyway, there are 4 million years of gradual evolution to produce the last Hominid, the third chimpanzee. 4 million years and 5000 genes and two amino acids. One thousand years for billions of organisms to cumulate in just one helpful gene. 1000 years and one gene. Not a big stretch.
[i]No, it doesn't extend that far back. You outright assume it.[/i]
Assume what?
[i]Might I remind you of my pointing out that genetic redundancy (which you said was 90%, so any mutation in the redundant segment is new information) was a prevention of mutations rather than an assistance to it. The redundant information is used as an error check to eliminate mutations wherever possible, not as a cesspool for mutations to accumulate.[/i]
What? How old are you? Do you understand proofreading mechanisms? Proofreading mechanisms only work because bad genes are destroying a metabolic cycle. The proofreading mechanisms that occur during the polymerase are anything but infallible, as they depend on the constant influx of ATP, and only work because nucleotides bind more tightly to their counterpart. After that, a corrupted cell which is doing something "bad" is destroyed by phagocytosis. Most redundant genes are not in use. They will go unnoticed. That's the premise of duplication error.
Even though I have not yet finished reading the post, I felt compelled to point something out. If, when I finish this...quite long post, I feel compelled to say something more, I will edit.
[i]On the other hand, Introns, which are not so sensitive or precisely executed, or are sometimes just junk or redundant, mutate based solely on random frequency. As there are 44 codons that don't correspond to an amino acid, these are used in introns. Therefore, the next axiom of evolution is that evolution is driven by the Introns. Obviously it is more complicated, Introns can become exons during shuffling/shifting, and exons can become Introns, and sometimes exons can be mutated harmlessly, so long as the mutation changes only a tiny chunk of the gene, but this rule still applies.[/i]
44 leftover codons??? I hate to have to be the one to tell you, but you are dead wrong here. Most amino acids have several codons that the tRNA will attach to. There are about 5 stop codons for instance. This is another aspect of the genome being redundant to retard mutations, not assist in procreating them.
(the final portion has been edited to correct informational content)
Also, introns are used, just not in the function of creating protein. Most are coded with splicing sequences and have controller sequences for how other genes are expressed.
[quote] For instance some sequences of DNA, known as introns, have been shown to regulate the way in which sense and anti-sense DNA is expressed. Errors in these genetic sequences lead to cancer and other genetic diseases. [/quote]
44 leftover codons??? I hate to have to be the one to tell you, but you are dead wrong here. Most amino acids have several codons that the tRNA will attach to. There are about 5 stop codons for instance. This is another aspect of the genome being redundant to retard mutations, not assist in procreating them
When did I say anything about leftovers? The real issue with exons/introns in their sensitivity. There are codons dedicated to spliceosomics of course (which are still proteins dedicated to the enzymatic catalyzation of removing the introns from a mRNA string), but the real problem with exon mutation is the sensitivity of the codon order. Also, stop codons are not exons technically as they are punctuation which does not code for protein. Since codons are triple-based, the extras create mutation opportnity (especially point mutation as opposed to base insertion). That's what I mean by "extra codons". If we had doublet-based codons we could only make 16 amino acids.
[quote=deludedgod]
In terms of probability, evolution is actually extremely generous. Think about this. There are 25 speciative links between monkey (the pan genus) and man (Homo Sapiens). Every Hominid before us went extinct. We killed them all, that is what happens when an organism is too successful. Man may be the most genocidal creature nature ever produced, but I digress. There are 5000 different genes in the monkey/man split. The absolutely most closely related species differ in 200 genes. 200 genes is not enough to give massive difference in phenotype, but it is enough to prevent interbreeding. Anyway, there are 4 million years of gradual evolution to produce the last Hominid, the third chimpanzee. 4 million years and 5000 genes and two amino acids. One thousand years for billions of organisms to cumulate in just one helpful gene. 1000 years and one gene. Not a big stretch.
[/quote]
If I was polite I would have given you a while to retract this. 1 gene per 1000 years is probably closer to the net mutation rate than the beneficial mutation rate for a very small population (under punctuated equilibrium.) So when the mutation rate is highest, the selection rate is lowest.
But this isn't the real problem.
The human body has 3 billion base pairs and somewhere between 20,000 and 25,000 genes. With a gene density of 1.5 percent, this translates to the smallest possible average gene length being 1800 base pairs. Then let's say that these (the gene differences between humans and earlier hominids) are all really short genes, so they are half the average length at 900 base pairs. Now let's say that the genes are really similar, so the gene difference is 2 percent the length of the gene at 18 base pairs or 6-18 codons.
I have been about as leinient as the math will allow to this point.
Now, to have a functional protein, we are not looking for 18 random bases, but six specific codons coding for specific amino acids. Let's say that this is theistic evolution and each base pair only has to mutate once to become the proper gene, even though this realistically would be many times more. That makes 18 point mutations plus one for exonization, plus one mutation to make the gene in the first place makes an even 20.
Now, you say yourself that the difference is 5,000 genes. Let's half that because humans and apes split. We have a 2,500 gene difference.
2,500 * 20= 50,000 good mutations
But wait, these are only the mutations at the site of the differences. 5,000 genes is 1/4 of the gene pool (retaining mathematical leaning toward evolution by conveniently swapping from 25,000 genes to 20,000)
50,000 * 4= 200,000 mutations
Wait a sec... all this is only the mutation for 1.5 percent of the genome... Let's not even bother with that figure.
200,000 mutations over 4 million years translates to one mutation every 20 years.
All this is as favoring evolution as the math will allow. Don't bother to thenk me for my obscene generosity. I ran out the math for the other end of the spectrum and let's just say that it makes me question your sanity.
All this discludes neutral or negative mutations being more common than benificial by several orders of magnitude.
Are they living under an x-ray machine or something?
I'm sorry it wasnt clear, I shouldn't have used the term genes, base pairs is more clear. Humans and chimps are about 80,000,000 base pairs different. Many of these were not even produced by genetic mutation or drift, they were produced by karyotype fusion. If we are to look at the amount of new information produced by genetic mutation. The difference between humans and monkeys in terms of the product of genes, is only 160 enzymes. 160 new enzymes is nothing.
Reading my post again, I must have been extremely drunk. Nearly all of the mutations that were passed on are useless. If we remove all of the junk mutations, the amount of useful mutations becomes about a 0.4% difference between men and chimps. Depending, of course on how you define it. Percentage is typically taken to mean base-pairs because using the term genes simply is not clear. That's 12,000,000 base-pairs of helpful genetic material. A significant percentage of that was not borne out of genetic mutation but karyotype fusion anyway.
Only a very small amount of each gene changes. The absolutely largest change was identified by a computer in a tiny region of only 118 nucleotides called HAR1 (an RNA gene involved in cortical development of the neocortex) 18 nucleotides changed, amounting to a 10% change. That was the largest change found in a single gene (note, a gene is usually about 1000 base pairs, but is defined as having a stop codon/intron punctuation at either end, producing just one protein).
I hope it is more clear now. 80,000,000 nucleotide changes over four million-eight million years (the exact time is unknown), most of which were not created by mutation conservation.
Ignore my statement about "5000 genes", it is ridiculous, makes no sense, is unclear and Im sorry.
Thank you for the clarification.
80 million base pairs spread across the genome makes for a lot of point mutations, though.
My intuition says that that rate of point mutations is far too high, but I can't find a source citing the relative rates of mutations. I did find this about introns:
[quote]But not all our "junk" DNA is junk. As more vertebrate genomes are sequenced, it turns out that they contain stretches of DNA that do not encode proteins or RNA but have none-the-less been remarkably conserved during vertebrate evolution. Some of these regions have accumulated fewer mutations than protein-encoding genes have. This suggests that these sequences are extremely important to the welfare of the organism, but why is as yet unknown. [/quote]
future reference: (This is so that I can find the site again as much as anyone else, it's pretty basic stuff that I learned in AP Bio, but have forgotten between now and then.) http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/M/Mutations.html
Now, rather than assuming that introns are useless remnents of evolutionary junk, I recomend that we at least give them the benefit of the doubt.
The appendix supposedly was a vestigial organ with no use. That was wrong.
The panda's thumb was called a clumsyness. That was wrong too.
The human recurved spine was concidered a remnant of evolving from a stooped over posture. That has actually led to improper diagnosis of back problems because, as it turns out, it is the perfect upright form.
How about we wait for the scientists to tell us what introns are for before we jump to any conclusions about them?
Some clarification. Obviously introns are important. They serve useful functions regarding punctuation, stop codons, and of course, they control transcription rate. Not all junk DNA are introns, and defintitely not all introns are junk DNA. Introns are simply genes flanking exons that do not code for protein.
However one looks at it, introns make up the vast majority of the Eukaryotic genome. Small, conservative prokaryotes tend to have a nearly fully-functioning genome. The average bacteria has only a 90% functioning rate. Incredible by Eukaryota standards. For instance, in our own genome, only 2.5% are exons.
Anyway. There are multiple ways to define "junk"
-Redundancy. This is quite a big one. Not a useless gene but rather an extra copy of a useful one which comes about by duplication error. this creates problems for geneticists trying to determine functionality, but creates opportunities for evolution.
-Migrating genes. These are the holy grail of the common descent study. There are two biggies: Endogenous Retrovirals and MtDNA migration. ERVs are the result of ancient Retroviral reverse transcription. The same reverse transcription process by which the HIV virus infects our CD4 T-Cells. They become fused into the genome and passed on for millions of years. They make up around 8% of the human genome, but don;'t worry, they can't make viruses. They have something called nonsense mutations that make them harmless. The other migrating gene comes from within every cell in our body. Every Eukaryotic cell has mitochondrion to power them by metabolizing food breakdown. the mitochondrion are actually bacteria, the result of an ancient evolutionary symbiosis which I can go into more detail about if you ask me to. Because they are bacteria, the Mt have their own tiny little genome, around 16000 base pairs. mtDNA is useful for evolution and genetic tracking because it never changes, because there is no gamete fusing. It's also useful evidence of common descent because sometimes MtDNA migrates into the full genome in the nucleus. I cannot recall off the top of my head how much of the human genome is useless mtDNA.
Yeah, I can back up the appendix statement. I used to study endocrinology, so I know it is useful lymph tissue.
The rate of mutation is not too high, not when you consider that there are millions of mutations per day. Polymerase is far from perfect.
So let me get this straight, it is just as likely that the "junk DNA" we have is from viruses our ancestors caught as they are evolutionary refuse? Isn't that harmful to your position?
what do you mean just as likely, the genome contains both. The threemain genetic waste products are mtDNA insertions, Endogenous retrovirals, redundancies. Junk DNA is just useless DNA.
The reason Endogenous Retrovirals are so useful is because when we find the Endogenes discovered on identical fusings in the genomes of different organisms, especially of different eons, it provides very useful indication of the common descent. The process is rare and random, so the probability of the event occuring twice without common descent, let alone thousands or millions of times, would be astronomical
The only other explanation for Endogenes is that God deliberately inserted them to fool us and test our faith.
Concidering how many viruses I have caught in my lifetime and how many generations 10,000 years is, I have no problems with it, especially concidering that derrivitave viruses can infect many species at once.
[quote]The only other explanation for Endogenes is that God deliberately inserted them to fool us and test our faith.[/quote]
I know that you are going to have a fit on this one, but assuming God exists, it is His place to judge you, not vice versa, and assuming He does't exist, you prove nothing.
Yeah, yeah, yeah.
You said you caught [i]viruses[/i]. I'm talking about retroviruses. Have you ever caught a retrovrisus? I doubt it unless you have HIV. Ancient retroviral insertion proves common descent unless you have a rebuttal.
By the way, please tell me you aren't a young Earth creationist are you? Please tell me you are not!
HIV is not the only retrovirus. It is only the most well know. Many cancer causing (OK, cancer probablilty raising) viruses are retroviruses of one sort or another, like Sarcoma and Leukemia causing viruses. As that these viruses can lay dormant or go into remission for very long periods of time, and that both Darwinism and genetic lineage (we can at least agree on the latter) only apply to differential reproduction (making more children) it is entirely possible that ancestors were infected with similar viruses.
Also, viruses do go extinct, but they don't leave fossils except possibly in the DNA of the population that was attacked.
I will answer that last question indirectly.
When God's Word is put on a par with man's ideas (ie Theistic Evolution) guess who is actually in control.
God's word is needed for too many things (the laws of logic, universal natural laws, the guarantee of the uniformity of nature, and inalienable rights for a few) that existance without them is truly...useless.
Does the fact that I can be educated and still be a young earth creationist summon forth nightmarish creatures from your deepest intelect somehow? I doubt.
You are probably already aware that Jesus made [i]old[/i] wine out of water in the wedding feast in John 2. The "age" of the earth has nothing to do with the metaphysical. (You are going to ask me how I know I wasn't created 2 seconds ago. Don't worry. I have an answer.)
Your previous post about retroviral infection of species is idiotic. Most viruses commandeer the cellular mechanisms to make copies. A retrovirus on the other hand, reverse transcribes in RNA into the host genome (hence reverse transcriptase inhibitors as drugs against HIV). Now, like I said, retroviral insertion is both random and rare. That means that finding identical retroviral positions ON IDENTICAL POSITIONS IN THE GENOME of multiple species would be all but impossible without genetic descent. Viruses go extinct, but I dont think you understand that they leave their genomes inside their host organisms.
If you are young Earth creationist, yes, that does frighten me. Furthermore, I have read scripture, but obviously I dont believe that Jesus made wine out of water (does it frighten you that I dont believe in God).
Im not going to use that argument you suggested against young Earth creationism, but it will be interesting to see how you respond to this.
Large atoms with concentrated, crowded nuclei are highly unstable. To correct the instability, they will either
a) Release a highly ionizing but low energy particle consisting of a helium nucleus with two protons and neutrons. This is called alpha radiation.
b) If the nucleon number is isotopically unstable, the atom will change a proton into a neutron or vice versa allowing an electron to be released or a positron depending on beta minus versus positive.
Another thing they can do is released an ultra-high energy wave called gamma which is irrelevant to my question below.
For instance, a carbon-14 isotope. 99.999% of all carbon is stable carbon-12. but carbon-14 isotopes are not stable and make up 1ppt (part per trillion) of all carbon. They release beta radiation to correct the nucleon instability by firing off an electron. This causes it to decay into Nitrogen-14. The great thing about radioactive decay is that it is a random process that obeys probability laws. The other good thing about it is that you can dip a radioactive material in molten lead, in acid, shoot it, burn it, fire particles at it, try to irradiate it again, pass a current through it...and none of these things will change the isotope clocks. They are fixed.
Now let me explain how we use this to measure the age of the Earth and organic material. Radioactive half-life is the amount of time it takes for the Geiger counter count rate (CPS) to fall by half. Radioactivity is a Zeno's paradox, because it falls to 1/2 then 1/4 then 1/8, but never to 0. It takes the same amount of time to fall from full to half as from half to quarter because the probability remains the same, because radioactive decay is an elemental nuclear cycle.
Depending on their isotopic properties, different isotopes and elements decay at different rates. Uranium 238 has a half life of 4500 million years...almost exactly the age of the Earth. Certain Thorium isotopes, and Polonium 221 for example, half in hours to seconds.
All life is made out of carbon, and all life is made out of roughly the same percentage of carbon-14, which is 1ppt (part per trillion). When something is alive, the amount of carbon-14 it has remains at a constant 1ppt, but once it decays, biological processes stop so the carbon influx/outflux stops too, and the C-14 starts to decay into N-14 and is not replaced. So if we examine a dead plant by giving it a radiocarbon test, and we find the amount of carbon 14 (can be calculated using the mass of total carbon) and the amount of C-14 has reduced to 1/8, it means that the plant is 18,000 years old roughly, because C-14 has a half life of 6000 years (actually about 5300 years). The N-14 that C-14 decays into is simply released into the atmosphere.
If you don’t like Carbon 14 dating, there are over 20 types of radioisotope dating, including Pb-Ur, Ar-Ar, K-Ar etc. Some of which can date back millions and billions of years because the isotope is more stable.
To prove that the dinosaur bones are 6000 years old, you would need to find some rocks in ancient geological striation, among the dinosaurs, and test them using multiple isotope tests, which should give you a dating of between 3000 and 10,000 years if you are right.
Radiometric dating is not exact science. However, dinosaur bone dating never drops below 65 million years. They cannot provide exact answers for ancient (millions to billions of years) dating, but using a range establishes consensus. If the Earth was only 6,000 years old, the radioactivity emitted by unstable materials would be huge. We would immediately notice it because almost none would have decayed...in fact, we would not be here because life could not survive in that environment.
Creationists typically answer this with two fallacious arguments:
1. Radiometric dating is erratic, different techniques give you totally different numbers. It cannot be trusted
2. Scientists assume uniformitarianism, while radiometric dating might have been greatly speeded up in the past.
Both of these are ridiculous. The error in the spectrum of radiometric dating is normal experimental error. Radioactivity, after all, is a completely random process. However, the use of multiple isotope tests is not designed to establish a precise age. It is meant to establish the magnitude. If you have three tests, one which says 50 million years, another says 70 million and another says 92 million, then that is your age range. Radiometric errata does not help creationists, because it is used only to establish the magnitude of age. Even with such error, we would notice if the Earth was 6000 years old because the spectrum would bluntly stop between 2000 years and 12000 years. Radiometric errata is not an argument for creationism. The magnitude of age always comes up on the order of millions and billions.
Uniformitarianism. Firstly, this argument is self-defeating. To assume anti-uniformitarianism (a legitimate scientific debate) one must assume the Earth is millions or billions of years old. We can measure the conditions of the last 10 000 years so accurately now that we can be certain that the cataclysm of the conditions necessary to increase radioactivity that much could only have existed long before advanced life, as such bombardment would have inevitably shut down any evolutionary projects. Anti-uniformitarianism only calls into question the accuracy of ultra-slow isotopes like U238, which halves in over 4.5 billion. years. It does not affect fast isotopes like C-14, which we can measure only to the past 60,000 years. Going back this recently, radioactivity could not have increased at all in such a short time span unless our Neanderthal ancestors were performing atomic blast tests.
Obviously, insisting the universe is 6,000 years old is completely ridiculous. As is the idea that the world was created in six days. I could present literally thousands of arguments from every scientific field in existence. Gaseous shifts, atmospheric depletion, spectroscopy, radioactive decay…all impossible if the universe is so young. At 6,000 years of age the universe was barely a tiny baby, and stellar evolution had not yet taken place with the result that matter was simple quark soup and dark energy. On the other hand, when the Earth was 6,000 years old, the Universe was fully mature. Hydrogenous ionization that had taken place during what cosmologists and astrophysicists call the “dark ages” had formed every element imaginable, and had created the fusion process necessary for the creation of stellar bodies and galactic clusters. The sun was still a little sun, because it was created roughly the same time as Earth was pulled together by it’s gravity. When Earth hit it’s 6,000th birthday, it was a lifeless boiling radioactive rock and an immature, barely existent atmospheric layer of carbon dioxide.
I doubt that you wrote all that in 8 minutes. Give me a moment, please.
I did not write it in eight minutes. I took it from an essay that I wrote called twenty two answers to creationist nonsense. I did not copy it from anyone else.
Next time can we be so kind as to respect my intelligence. I think you knew very well that I know what uniformitarianism and radioactivity are. My positions are not held out of a lack of education and I feel somewhat insulted that you are handing me a paper of definitions that I learned in 6th grade.
Radioactivity: U 235 accounts for about 1/150th of the naturally occuring Uranium on Earth, and it's half-life is half an order of magnitude less than U-238. If the earth was really 4.5 billion years old, then there would need to be a cosmic abundance of about 1/30th the natural Uranium. We don't see that. We also know that Carbon 14 dating is not accurate past 10,000 years thanks to tree growth rings. The dating has been shown to drift.
Uniformitarianism: When Mt. St. Helen blew in May, 1980, it deposited 40 feet of minutely layered ash in places. Later mudflows caused a series of intricate canyons that are a 1/40th scale model of the Grand Canyon. Later, streams took over the canyon bases. If uniformitarianism were to be properly applied, we would have to assume that the little streams eroded the canyons, when in fact we have observers testifying that this is not the case. Uniformitarianism is a good assumption, but other possibilities must be kept in mind as that there is a very real chance that they are the real cause.
[i]Next time can we be so kind as to respect my intelligence. I think you knew very well that I know what uniformitarianism and radioactivity are. My positions are not held out of a lack of education and I feel somewhat insulted that you are handing me a paper of definitions that I learned in 6th grade.[/i]
I wrote this essay generically, you idiot. It was meant to be a general response to creationists, very few of whom are scientifically literate. You think I would take the time to write a full response to this pointless debate? I know that you know. Most dont.
[i]Radioactivity: U 235 accounts for about 1/150th of the naturally occuring Uranium on Earth, and it's half-life is half an order of magnitude less than U-238. If the earth was really 4.5 billion years old, then there would need to be a cosmic abundance of about 1/30th the natural Uranium. We don't see that.[/i]
What are you talking about? We use these to measure the ages of objects, not the Earth. For that we use zircon dating. The amount of radioactive elements remains constant due to decay cycles. That is why we use them to measure objects (from which radioactivity does escape). With a half-life of 700 million years, Any U235 that was around at 4.5 billion years ago should have deacyed by six half lives, or to about 1/32 of the original amount. Pu-239 decays into U235. The amount of radioactive elements is cylical. What do you mean "we should see 1/30", that does not make sense. We should see 1/30 of the amount of U235 in an object that is 4.5 billion years old obviously, assuming we know how much it had to begin with, and we do. But we can use it certainly to prove that the Earth is billions of years old. It is used for relative, not absolute dating.
On the other hand, Zircon dating is almost impossible to refute. Or isochrons, if you want. Also, how do you explain:
a) Diamonds
b) Oil
c) Any sort of atmospheric gas shift
d) Cosmological observation of distant galaxies
or anything else
I was talking about relative abundances for U-235 and U-238 and the actual cosmic abundance, not the dating proceedures themselves.
First of all, it is quite probable that God could not have created an earth that was immediately sustainable for life unless He had created it so that some of the systems had appeared to have been running for some time. There would have been no soil for plants if the erosion cycle had not apparently been running for quite some time.
a) synthetic diamonds form in only a few hours. Nature has much more pressure and temperature to help it.
b) You can read it for yourself. I don't mind using biased sources.
http://www.icr.org/index.php?module=articles&action=view&ID=259
c) If the Earth is really 10,000 years old, what makes you think that any of your dating proceedures are accurate or that those gas bubbles weren't made that way? (see opening paragraph)
d) How do you explain the Big Bang in the first place, concidering that space, time, and mass are all interdefined, there was none of any to produce a naked singularity by a quantum flux in the first place?
e) Why is it that when a creationist uses a natural disaster to explain something that uniformitarianism can't (Mt. St. Helens again), it is called religion invading science. When an evolutionist proposes it (like the dinosaur extinction by asteroid impact) it is called "sexy." I call that a double standard.
[i]First of all, it is quite probable that God could not have created an earth that was immediately sustainable for life unless He had created it so that some of the systems had appeared to have been running for some time. There would have been no soil for plants if the erosion cycle had not apparently been running for quite some time.[/i]
Sounds to me like you are making stuff up. Provide some evidence. You are hypothesizing out of thin air.
b) You can read it for yourself. I don't mind using biased sources.
http://www.icr.org/index.php?module=articles&action=view&ID=259
yikes. The Creation Institute. An organization with 600 members who spend their time pretending to research science. You may not, but I mind biased sources. I have a few insignificant little organizations on my side too, like the American Society of Biochemistry and Molecular Biology, The American Association for the Advancement of Science (10 million members), the American Chemical Society (160,000) the American Society of....etc etc ad infinitum.
When we synthesize diamonds, we can do it far more optimally than nature can. The oldest diamonds that are not synthesized allotropes are one billion years old.
[i]
c) If the Earth is really 10,000 years old, what makes you think that any of your dating proceedures are accurate or that those gas bubbles weren't made that way? (see opening paragraph)[/i]
that does not make any sense. You assume the conclusion than try to distort facts to fit it. We drew the conclusion of the age of the earth only after using dating methods to confirm it. Your logic is the precise antithesis of science. You still have not countered zircon dating or indeed any non-carbon radiometry except to say that it might be wrong. Of course it might, but that does not mean that creationists are right by reductio ad absurdum. Can you provide a shred of evidence that the Earth is 10000 years old?
Here is the problem with creationists. They assume they have the truth (the bible) then they try to force science to conform to that model. In other words, they have the conclusions and try to make up facts to support it.
In realityland (not fairyland where they reside) the scientific induction process is the precise opposite. You find facts and draw conclusions from them.
[i]d) How do you explain the Big Bang in the first place, concidering that space, time, and mass are all interdefined, there was none of any to produce a naked singularity by a quantum flux in the first place?[/i]
You are leaving the topic and trying to change subjects. This is not a discussion about energy-matter condensation. This does not explain how we can see stars billions of light years away.
The question is not if my beliefs are inconsistant with your viewpoint, but whether or not my viewpoint is internally consistant, which they are. You are giving suggestions that God doesn't exist, I have given in your Hell thread a true inconsistancy of your belief (which you immediately deflect the issue on.) I can always say God made it that way and it is entirely internally consistant.
[quote]When we synthesize diamonds, we can do it far more optimally than nature can. The oldest diamonds that are not synthesized allotropes are one billion years old.[/quote]
Prove it.
[quote]yikes. The Creation Institute. An organization with 600 members who spend their time pretending to research science. You may not, but I mind biased sources. I have a few insignificant little organizations on my side too, like the American Society of Biochemistry and Molecular Biology, The American Association for the Advancement of Science (10 million members), the American Chemical Society (160,000) the American Society of....etc etc ad infinitum.[/quote]
(**SIGH**) As usual, you call names and do not address the issue at all. Galileo, when he was attacked by a Greek philosipied Roman Catholic church, had zero organizations that he could turn to. If you want me to respect your arguments, refute mine with science, not by calling them names like "pretenders." Until such time as you actually refute the argument, I will concider it as my sucessfully answering the question. If it is a wrong answer, it should be pretty easy for you to at least poke a sophomoric hole in it.
[i]Prove it.[/i]
The person who thinks the Earth was created after the Sumerians learned to brew beer wants proof? Fine.
forcing the carbon bonds to adopt a four-way covalency requires very specific temperature/pressure relationship that is found only at certain deep points within theupper mantle. Whereas synthesis is done under HTHP conditions, diamond formation occurs at relatively low temperature. Diamond formation occurs not in the crust, which only extends to 70km in depth, but through to 150km up to 320 km below the surface, where the pressure is great enough to force the formation of diamond. Inside the mantle where the diamonds are formed, small minerals reside within the surrounding rocks. these contain ancient isotopes that reveal that diamonds are very old, 3.5 billion years in some cases. They cannot form on land, as they will quickly decay into graphite, and can only reach the surface through volcanic blasts. The conditions in which the diamonds reside for most of their history is ideal for measuring very long lengths of time using isochrons or ultra-slow isotopes that cannot be explained by creationists.
In addition, I only felt it necessary to invoke the organizations on my side since you decided to post a link from the creation institute. You may understand why I find this insulting.
You still have not responded to my challenge regarding
a) tracking of distant galaxies/stars
b) Endogenous retroviral gene insertion
c) MtDNA tracking
[quote]In addition, I only felt it necessary to invoke the organizations on my side since you decided to post a link from the creation institute. You may understand why I find this insulting.[/quote]
I understand perfectly, but you still have not refuted the argument. As that I must go and deliver a paper this afternoon, I expect that you will at least post links to those big organizations refuting those arguments in that time. If not, then I have an argument that you have not willing to refute, which constitutes my point.
You have not responded to my posts regarding daimonds, ERVS, MtDNA or galactic clusters.
Furthermore, the argument from the link you posted rests on circular reasoning. The Earth is 6000 years old because it says so in the Bible, and it also says there is a flood, which might be consistent with the anoxic formation of oil if it happened hypothetically assuming we ignore all the other evidence we have gathered to state the age of the Earth.
You can see the insult to scientific induction this is. Creationists do not draw conclusions by gathering facts, they make up facts to support conclusions which were preexisting.
You want links from these sites? My favorite personally is the AAAS. They publish the elite magazine Science, which is read by scientists of every field around the world. I myself subscribe to this magazine.
Science publishes articles of biochemical evolution and cosmological age in nearly every article. you can try to access it online but I think you need a password. This is the very best source for science in the entire world. All of the world's most elite scientists write and contribute in this magazine. The results of the most recent experiments, tests and findings are published in this magazine.
[quote]Creationists do not draw conclusions by gathering facts, they make up facts to support conclusions which were preexisting.[/quote]
[url=http://www.freethinkingteens.com/image/scientific_method_vs_creationist_method]Spot on.[/url]
Might I remind you that everyone does.
Milikan, the American student of J. J. Thompson, when he was getting an exact measurement of the charge of the electron used J. J. Thompson's cloud experiments to give a gague of what he should look for. If the charge was not close enough, he would pour over all the equiptment to find an excuse to throw the answer out. If he got a result about where he wanted, he bookmarked the solution and gave the equiptment a lick and a promise because he didn't care to find out what went right.
I can even quote his personal log book if you want.
An evolutionist actually said that "If science were not done in this way, we could not do anything." about this.
Everybody is biased. It is purely hipocritical to say anything otherwise.
Of course there is always biased and subjective analysis it is human nature, but good science also has objectivism and constant state of doubt. Creationism does not.
Now. Are you going to address the following?
a) Diamonds
b) Zircon dating
c) Endogenous Retrovirals
d)MtDNA tracking
e) molecular clock and amino acid tracking
f) orthologs and paralogs
g) cosmological expansion
I am leaving now. I don't really like FTT much. If you want to reply, I will be on the Rational Response Squad message board, which I very much prefer to FTT.
**SIGH**
I already have delt with all of them, you just refused to allow the arguments. (That is not unexpected. If you cannot deal with an argument you dissagree with, call it a non-argument.)
As that you wish, though, I will give short, succinct answers that, in honor of your sophomoric style, give no sources at all.
A and B: Uranium and Zircon (cycle) decays both yeild lead and helium. Lead (and similar elements like argon) is used in radioactive dating because it isn't going to go anywhere, even though there is no effective method for determining what isotope of lead is being delt with and how much lead was in the rock to begin with. Helium is ignored because it is supposed to diffuse out of the rock as fast as it is produced. In actuality, there is a little Helium in rocks. Based on the decay rate and labratory tests on actual rock effusion rates, the actual rock ages around diamonds and fossils usually corresponds to a rock that is 6-10 thousand years old.
C: I fail to see the argument here, unless it is more on the 98% of the non-coding human genome, which we already know has some other purpouses other than protein synthesis. This is more of an assumption of useless DNA than a real argument. I have already listed a bunch of organs that were falsely assumed to be vestigial which later proved to be wrong.
D: Again, I fail to see the argument Mitochondrial DNA (I just now found out that that is what mtDNA stands for, thanks a lot.) There is no way I can tell what your argument is if all you give me is one term with no substance.
E: All proteins and genetic matterials degrade to total illegibility at a conjectured rate. The age of the rocks used to assess that rate are dated with radioactive dating, which, as seen above, does not give the full story. This is circular reasoning.
F: Another case of circular reasoning. You have already said that the difference between humans and apes is 80 million base pairs. Is God supposed to give completely different metabolisms for all of his creatures? How would the food chain function if each creature had to break down all of what it ate into atoms to process it? Digestion already claims half the body's energy, and that is with the help of enzymes already present in food we eat before we eat it. To not have similar metabolisms would mean a nill of leftover energy.
G: 2 points:
1. If God created the universe 6-10 thousand years ago, do you really think that He would bother making stars millions of light years away and not have a stream of light made flowing between here and there? To create one and not the other would be pointless.
2.Do we know the fundamental shape of space-time curvature? All we know is that the Hubble constant is positive, so our best guess is that space-time curvature is negative. This would mean that as light travels furhter, it encounters more resistance from space-time itself via gravitational redshift, so we really have no clue as to even if the galaxies are really moving away from us at all, or if the universal space-time is just negatively curved to begin with.
Now, will you answer my question on the Big Bang or not?
[i]C: I fail to see the argument here, unless it is more on the 98% of the non-coding human genome, which we already know has some other purpouses other than protein synthesis. This is more of an assumption of useless DNA than a real argument. I have already listed a bunch of organs that were falsely assumed to be vestigial which later proved to be wrong.[/i]
"Rolls Eyes". ERV is not a junk DNA argument. It is an argument for common descent. I told you, the insertions are rare and random, thus to find the retroviral insertions on identical positions of multiple species of organisms throughout various geological strata from different eons would be astronomical in probability without common descent.
[i]Based on the decay rate and labratory tests on actual rock effusion rates, the actual rock ages around diamonds and fossils usually corresponds to a rock that is 6-10 thousand years old.[/i]
Where on Earth did you get that from?? regardless of what isotope, all the unstable isotopes of lead have far too short a half-life. The longest is about half an hour, the shortest several billionths of a second. So it makes no difference whatseover whether or not zircon decays into lead. That does not change the accuracy of the zircon dating. Furthermore, neither does helium. A "little helium in the rocks" will not throw the results off by eight orders of magnitude (such as you claim)
[i]
D: Again, I fail to see the argument Mitochondrial DNA (I just now found out that that is what mtDNA stands for, thanks a lot.) There is no way I can tell what your argument is if all you give me is one term with no substance.[/i]
maternal mtDNA does not undergo gamete fusion thus it is used for lineage tracking (hence the term mitochondrial Eve). In fact, we can trace mtDNA back more generations than you claim there are years in the age of the Earth.
[i]F: Another case of circular reasoning. You have already said that the difference between humans and apes is 80 million base pairs. Is God supposed to give completely different metabolisms for all of his creatures? How would the food chain function if each creature had to break down all of what it ate into atoms to process it? Digestion already claims half the body's energy, and that is with the help of enzymes already present in food we eat before we eat it. To not have similar metabolisms would mean a nill of leftover energy.
[/i]
Thus demonstrating that you go completely off topic and talk about pan/hominid and ignore the question, trying to shy away from the fact that you don't even know what orthologs and paralogs are
[i]1. If God created the universe 6-10 thousand years ago, do you really think that He would bother making stars millions of light years away and not have a stream of light made flowing between here and there? To create one and not the other would be pointless[/i]
You are reasoning in a circle.
[i]2.Do we know the fundamental shape of space-time curvature? All we know is that the Hubble constant is positive, so our best guess is that space-time curvature is negative. This would mean that as light travels furhter, it encounters more resistance from space-time itself via gravitational redshift, so we really have no clue as to even if the galaxies are really moving away from us at all, or if the universal space-time is just negatively curved to begin with.[/i]
Space-time is empirically demonstrable to be hyperbolic. If your statement were true, we would see no shift. If it were contracting, there would be direct proportionality between blue-shift and distance. But since the red shift/distance is constant, the universe is indeed expanding.
As that I am in a bit of a time pinch, I will only deal with a few:
1. Retroviral Gene Insertion: Retroviruses do insert Genes into the Host's genome. The occurence is rare and random, but also the site of insertion is only possible in a few places.
What information you leave out can be more importiant than the included information. The idea that Retroviruses can only insert specific information into very specific places is the entire concept of Gene Therapy. Also, these "inserted genes" have purpouses within the hosts themselves.
[quote]Most insertions have no known function and are often referred to as "junk DNA". However, many endogenous retroviruses play important roles in host biology, such as control of gene transcription, cell fusion during placental development in the course of the germination of an embryo, and resistance to exogenous retroviral infection.[/quote]
About the Radioactive dating: The Lead isotopes we are talking about are all stable. I did not use the word effuse for no reason, I was talking about how fast the Helium produced by the decay effuses from the rock.
[quote] Space-time is empirically demonstrable to be hyperbolic. [/quote]
Really? I am sure that astronomers will be shocked at that, concidering that the hyperbolic curvature is deduced from the Hubble Constant. Funny that a hyperbolic space-time curvature would cancel the effects of the redshift by having the light constantly compressed by the space-time curvature.
Orthologs and paralogs are little more than genetic forms of the vestigial organ argument. A common example is Hemoglobin (Blood O2 carrier), Myoglobin (muscle protein), and Chlorophyll (photosynthesis) as being two paralogs and an ortholog off the same structure.
If this were really the case, then we could probably think of a place where all three of these would have had a common function in evolution, after all, a plant must have chloryphyll to live as the human would need both Myoglobin and Hemoglobin to survive.
If Both Hemoglobin and Myoglobin were not fully functional in a very primitive form of life, evolving to the point of being a Nemotode is impossible. Impressive, concidering that anything smaller would have had no use for either. Far from proving evolution, you just run into irreducible complexity again.
I've gotta run, so I'll just answer the ERV part for now. I am well versed in molecular biology and biochemistry, not so much in cosmology.
[i]What information you leave out can be more importiant than the included information. The idea that Retroviruses can only insert specific information into very specific places is the entire concept of Gene Therapy. Also, these "inserted genes" have purpouses within the hosts themselves.
Quote:
Most insertions have no known function and are often referred to as "junk DNA". However, many endogenous retroviruses play important roles in host biology, such as control of gene transcription, cell fusion during placental development in the course of the germination of an embryo, and resistance to exogenous retroviral infection.[/i]
The first part is true. They can only bind to certain parts. Retroviral recognition of insertion point is ridiculously complex. Reverse transcriptase has to start it off with assembling the complementary strain of RNA which then binds to a tRNA to be fixed into the host's DNA by means of binding to the complementary sites, since RNA can recognize DNA. After that, the process becomes a bizarre chain of jumping genes (retrotransposons), RNAase enzymes to degrade the 3 and 5 (shorthand for the two ends of the DNA strain) to allow the RNA to be spliced into it. An integrase enzyme will fuse the RNA with the DNA.
However, due to the duplicative error of mitosis that typically leads to multiple paralogs, the number of possible insertions is vast. That is just for one retrovirus inserting one gene. The amount of possible combinations, and the fact that they still exist in the genome on identical sets, would be completely impossible were it not for common descent. There are too many factors. The numerous retrovirals, the multiple insertion points (even if it cannot insert everywhere in the genome), the horizontal transfer, the probability of the viral infection, the recombinant deletion, the various transposons that can be inserted. A friend of mine on the forum, Yellow Number 5 ( a chemical engineer) summed it up quite well
Take everything I told you as a 50/50 shot. The virus infecting the gamete, the gamete making a viable offspring, the infection occuring at the exact same spot, the infection not killing or preventing the host from reproducing. Take them all as 50/50 - that would be (.5*.5*.5*.5)^7 = a 0.0000037256% chance. The odds of each step are lower than 50/50. These are the BEST odds you can have.
(it is to the power of seven as there are seven retroviruses)
Also, I do not know where you got your information regarding the usefulnes of ERVs from, but it is not true. ERVs have nonsense mutations smack bang in the middle of the gene that makes them useless. Their proteins denature and die in seconds. Furthermore, far from being useful, HERVs are suspected of causing autoimmune disease.
Also, I notice you did not answer the mtDNA part. I know you were in a rush, but it did just remind me of something. In my previous post, I suggested that MtDNA can be used to disprove Young Earth creationism. Of course it can, but I am interested in something else about it now:
Mitochondrion are bacteria, the result of a billion year old symbiosis with the Eukaryotes. This explains why they have their own genome, and why they undergo their own binary fission inside the cell. Prokaryotes have a remarkable ability to exchange genetic material by a different process which is critical to bacterial evolution. This is called horizontal transfer. Horizontal transfer is an ability eukaryotes do not have because their DNA is enclosed in an intercellular packaged membrane (hence the name eukaroyote). Horizontal transfer occurs when bacteria simply exchange genes by passing them through the cell membrane to each other. This can occur either by direct junction fusing or literally uptaking of the new material. Prokaryotes can take any peice of nucleic acid string and simply incorporate it immediately because their DNA is not kept in an intercellular membrane.
Mitochondrion are like that as well. They can also perform horizontal transfer. But there is only one place for any DNA they eject to go...into the Eukaryotic nucleus. Throughout the last billion years, very occasionally, DNA would horizontally transfer itself from the mitochondrion into the master genotype. These infusions have survived for billions of years. This process, like ERVGI, is rare and random. But the MtDNA insertions always come up on identical sets of the genotype throughout different eons. Significant amounts of MtDNA are passed on, because of course, as evolution continues, the more mtDNA will accumulate in the genotypes of contemporary organisms. This is indeed backed up by the fossil record of Eukaryota. Again, without common descent, the odds are astronomical. Far more astronomical than ERVGI.
VERY IMPORTANT PLEASE READ THIS LAST PART:
Due to my strong dislike of the FTT forum, I am leaving this account and returning to my Rational Response Squad affilitation. So, if you wish to reply to my above post, please email it to me via the NoGodNetwork email service. It is good throughout the whole network, so I will recieve it at RRS.
Due to the vast and technical nature of the above debate, I shall offer only 2 small points.
1) what is meant by 'new' information. There is Guanine, Adeninie, Thymine, and Cytosine. What new can be added? It all comes down to arrangement, which can easily be created through vertical transcription, copying errors etc...
2) as to mutations, regardless of which has a higher propensity to survive, 'good' mutations propagate themselves better, and thus will come to dominate populations.
Point 1
New information: a gene that has not been in the population before or has recently exited the intron pool constitutes [i]new genetic matterial,[/i] but not new information. new information also implies that the protein produced by the gene is functional or fully capable of functionality, even if it is not specifically put to the exact task it would be best at immediately.
New genetic matterial is a net increase of the geneome. New information is an increase in the net used gene pool (not a new aleel, but a new opening for aleells to form.)
New information also has a requirement instated by Intelligent Design: It must constitute a comprehensible net of material enough to not be attributable to chance. While the exact statistical limit for the Universal Probability Bound is still under debate, the present bounds proposed are between 10^50 bits (proposed by Emile Borel) and 10^150 (proposed by Dembski.)
To give you an idea how big these numbers are, 10^64 is the approxamate number of atoms in the galaxy, give or take a few orders of magnitude.
This translates, with the 4 base pairs, though, to a gene of about 30-80 bases, or a really, really, really small gene (someone check my math, please.)
In other words, because genes are so long, all newly introduced functional genes must be concidered new information.
Point 2:
Good mutations will propogate themselves. I know better than to argue with microevolution (ie limited flexibility of the species development.) But the possibilities are inherently limited without [i]new information[/i] (as defined earlier.) If all beneficial mutations either diminish or do not increase the information (as is the case with all observed mutations: silent, detrimental, or beneficial) the evolutionary possibilites of the initial bacteria from the primordial goo is severely limited to less and less information only.
Believe it or not, deludedgod did not prove that genome increasing mutations occur above. All he proved was that net genetic increases were possible, not that either they are observed, or that those would eventually constitute new information.
[quote=Egann]Point 1
New information: a gene that has not been in the population before or has recently exited the intron pool constitutes [i]new genetic matterial,[/i] but not new information. new information also implies that the protein produced by the gene is functional or fully capable of functionality, even if it is not specifically put to the exact task it would be best at immediately.
New genetic matterial is a net increase of the geneome. New information is an increase in the net used gene pool (not a new aleel, but a new opening for aleells to form.)
New information also has a requirement instated by Intelligent Design: It must constitute a comprehensible net of material enough to not be attributable to chance. While the exact statistical limit for the Universal Probability Bound is still under debate, the present bounds proposed are between 10^50 bits (proposed by Emile Borel) and 10^150 (proposed by Dembski.)
In other words, because genes are so long, all newly introduced functional genes must be concidered new information.
Point 2:
Good mutations will propogate themselves. I know better than to argue with microevolution (ie limited flexibility of the species development.) But the possibilities are inherently limited without [i]new information[/i] (as defined earlier.) If all beneficial mutations either diminish or do not increase the information (as is the case with all observed mutations: silent, detrimental, or beneficial) the evolutionary possibilites of the initial bacteria from the primordial goo is severely limited to less and less information only.
Believe it or not, deludedgod did not prove that genome increasing mutations occur above. All he proved was that net genetic increases were possible, not that either they are observed, or that those would eventually constitute new information.[/quote]
Well, yes, assuming the precepts of Intelligent Design, that seems a problem. However, structures do not have to be built up in a flash. Rome wasn't built in a day, and neither was the human genome.
Three already existing forms whose use has since been eliminated may combine to create 'new' information. Or, the same forms, being used for something else might be duplicated, and changed in such a way that they now do something different.
You got me. How DO you know you weren't created 2 seconds ago?
I would also like to address your second quote. It comes up quite often in your posts. You say this of ethical situations, as though arbitrariness were A) prevalent and B) a bad thing. For example, let us say I arbitrarily decide unnecessary suffering is wrong.
This is not arbitrary, as it is A) something I would not want done to me and B) rather efficient.
However, even it it werne't arbitrary, how does that make it bad? An ethical code which is against murder is good(in that respect).
Finally, how is going off of the statements of God not arbitrary? Either he states it to be wrong arbitrarily, or it is wrong independently of his statement, at which point atheistic ethics could also conclude thus.
I know that creation was not created 2 seconds ago because God says he created it millenia ago. That simple. Now how do you know that you didn't come into existance 2 seconds ago either? How do you know that you exist at all?
Arbitraryness is bad for a very simple reason: it negates reason. All philosophical systems must have at least one arbitrary point: the ultimate self-attesting authority (in my case, God, and in your case, probably your own reason.) that one point must be arbitrary, but beyond that, all arbitrartion constitutes suggestion that the view is wrong, because it leans less and less on empirical evidence and logical flow, and more and more upon assumptions.
Inconsistancy is like arbitraryness, but proves that the worldview is metaphysically impossible rather than unlikely.
In other words, everyone is entitled to an opinion, but no one is entitled to a wrong opinion.
Generally, inconsistancy and arbitrariness go hand-in-hand. If you find one, usually with a bit of digging you will find the other.
Finally, God's statements (assume He exists for this instance) while ethically, logically, and authoritatively complete even if they are arbitrary, are almost never. God is bound by His own nature, which I assume is mostly described in th Bible, so His decisions can be called circular (which is justified because we are talking about the ultimate self-attesting authority) but not arbitrary.