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Author Topic:   WTF is wrong with people
shalamabobbi
Member (Idle past 2839 days)
Posts: 397
Joined: 01-10-2009


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Message 456 of 457 (713634)
12-14-2013 11:07 PM
Reply to: Message 407 by Faith
10-15-2013 5:09 PM


Re: Contribution of Drift
Something I notice when looking through creationist literature is the self-contradiction between the creationist explanations put forward to find fault with the scientific explanations. When focusing attention on just one topic at a time these contradictions aren't as noticeable. Only when you collect them all, do you begin to see that this creationist explanation contradicts that creationist explanation over there.
post 407
how selection and isolation reduce genetic diversity which defeats the very idea of evolution
This seems to be a recurring post, how the founder effect reduces genetic diversity, of course only by denying beneficial mutations, however rare. This is a direct contradiction with the idea that all mankind sprang from Adam and his cloned wife Eve who had very limited genetic diversity, a single pair that together had no more genetic diversity than a single individual.
How do you explain all the genetic diversity that presently exists in the human population in 6,000 years time??
If it is by means of some sort of super genome, iirc Jar laid that one to rest in a thread about the DNA of the 5,000 year old ice man.
tzi - Wikipedia
quote:
Young-earth creationists such as Answers in Genesis will doubtless claim that this research supports their claims that humans, Neandertals, and other archaic hominids all form one species. However, it's a lot harder to see how all the necessary population events can be squeezed into 10,000 years. Starting from Adam and Eve, humans apparently populated Africa, Asia and Europe, then some of them left Africa, picked up some Neandertal genes from the Middle East, then populated the world again, with some of them picking up more genes from the Denisovans and going on to populate Melanesia. Somehow, this emigrating group was also able to cause all the other humans to become extinct. At some point a flood occurred, killing all but 8 humans and removing most of the genetic variability. It would be tempting to assume the flood took care of removing the Neandertals and Denisovans, but that would leave the problem of explaining how their genetic contributions made it into the modern world. Supposing one person on the ark had Neandertal genes, and another Denisovan genes. The Arkers then had children who would have married each other. How could it happen that Africa ends up with the greatest genetic diversity, and yet none of the Neandertal and Denisovan genes are found there? Meanwhile, the Neandertal genes managed to find their way into all non-Africans, while the Denisovan genes found their way into the Melanesian population, but nowhere else (if 8 people populate the world, how can one of those people account for 5% of the genome of 0.15% of the world's population?). This scenario seems, to put it mildly, hopelessly improbable if not completely impossible.
The Denisovan genome and fossils

This message is a reply to:
 Message 407 by Faith, posted 10-15-2013 5:09 PM Faith has not replied

Replies to this message:
 Message 457 by Coyote, posted 12-14-2013 11:37 PM shalamabobbi has not replied

  
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