January 28, 2009

MAKING IT EVEN FUNNIER...:

Natural Selection Not The Only Process That Drives Evolution? (ScienceDaily, Jan. 28, 2009)

The researchers identified fast evolving human genes by comparing our genome with those of other primates. However, surprisingly, the patterns of molecular evolution in many of the genes they found did not contain signals of natural selection. Instead, their evidence suggests that a separate process known as BGC (biased gene conversion) has speeded up the rate of evolution in certain genes. This process increases the rate at which certain mutations spread through a population, regardless of whether they are beneficial or harmful.

"The research not only increases our understanding of human evolution, but also suggests that many techniques used by evolutionary biologists to detect selection may be flawed," says Matthew Webster of the Department of Medical Biochemistry and Microbiology at Uppsala University.


...is the conceit that they can now that the others are "beneficial."

Posted by Orrin Judd at January 28, 2009 1:37 PM
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