Don’t Read Face of Molecular Clock at Face Value

first_imgA press release from PLoS Biology says the so-called “molecular clock” (the idea that genes mutate at a steady rate) is “not so dependable after all.” Mutations tend to cluster around microsatellites in the genome, biasing the arrangement of genetic changes. The claim is based on the work of Edward Vowles and William Amos, who found that “the clock is anything but constant. Instead, a mutation in one spot in the genome affects the chance of getting another mutation nearby.”The finding disputes evolution, but the article claims that mutations are the raw material for evolution. It also repeats the myth that the genome is mostly filled with “apparently meaningless nonsense.” Any evidence? Nope. Any assumptions? Yep. Junk DNA? See 06/03/2004 headline.(Visited 4 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img

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