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Author
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Topic: Has a Darwinian Prediction Failed in Regard to the Chimpanzee Genome?
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Jehu
Member
Member # 1981
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posted 22. May 2006 22:34
It has recently been reported that comparison of the Chimpanzee and Human Genome does not demonstrate a uniform degree of seperation as would be predicted by NDE.
Using the logic of the cytochrome C argument often raised by Darwinists, if the human and the chimpanzee diverged 5.3 million years ago then their genes should reflect 5.3 million of neutral drift from a common ancestor. The exception would be where a gene is highly conserved. The genes, however, do not show this. Instead of the predicted uniform drift there is a broad range of similarity and nonsimilarity between the genes.
Here is what the Harvard University Gazette says about the NDE prediction for comparison of seperated genes.
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Because mutations in DNA occur at a steady rate, scientists are able to compare the changes between species and figure out how long ago they last had a common ancestor.
Here is what the Harvard Gazette reports about the results of the Human and Chimpanzee genome comparison:
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What the results reveal is a surprisingly large range. Different segments of the genome differ in age by about 4 million years, researchers found.
http://www.news.harvard.edu/gazette/2006/05.18/11-chimp.html
Darwinists are attempting to explain this apparent age range by claiming that Chimpanzee's and Humans split and then for the next four million years genes from the Chimpanzee continued to migrate into human gene pool through interbreeding with a hybrid human/chimpanzee race. Apparently the hybrid race worked like a one way valve to pass genes to the humans from the chimp.
This might be the king of the "just so" evolutionist stories.
However, it gets worse. There is still Haldane's dilemma to consider. How many genes could concievably be passed through to humans from the chimpanzee and be fixed in 4 million years?
The only person who has dared put a concievable answer to Haldane's dilemma on the internet is Robert Williams. You can find it here. http://www.gate.net/~rwms/haldane.html
Robert Williams seems to admit that the maximum number of fitness producing substitutions that could be fixed in the human population since the alleged speration of man and chimp is 1,667. I am not sure why he does not include all changes since there is a cost to fixing any difference, not just fitness producing changes. Nonetheless, here is what a recent comparison in the human and chimpanzee genome has revealed
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Scientists believe that humans and chimpanzees diverged from a common ancestor about 6 million years ago. Since that time, both species have continued to evolve, acquiring traits that make them different from both that ancestor and from each other.
Though completing the chimpanzee genome is an achievement in itself, it is the ability to now compare chimpanzee and human DNA side-by-side that has researchers excited.
The differences between the two genetic codes include 35 million sites where DNA base pairs differ and another 5 million sites where a portion of the genetic code - up to thousands of base pairs - has been inserted or deleted.
http://www.news.harvard.edu/gazette/2005/09.15/11-chimp.html
It is clear the NDE predictions have failed in regards to the comparison of the human and chimp genome. They are now in the process of retrodicting - that is trying to reconcile their theory to the observation.
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peter borger
Member
Member # 722
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posted 29. May 2006 07:56
From the Gazette:
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What the results reveal is a surprisingly large range. Different segments of the genome differ in age by about 4 million years, researchers found. That large range of dates could be explained if there had been some genetic exchange between the two developing species over that time.
The reason why the researchers find these surprising results is because they asssume they study randomly introduced mutations, but in actuality they study the differences between random and non random mutations. With the Darwinian glasses the data look as if the genome is built of distinct segements of different age, but in fact the data are explained as rapidly changing regions (as it attracts nonrandom mutations) versus parts that change slower. This is predicted by GUToB (as argued previously and shows the power of GUToB as a scientific theory), which says that what we observe in the genome is the result of RM and NRM.
peebee
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