Tuesday, September 27, 2005

New Analyses Bolster Central Tenets of Evolution Theory

New Analyses Bolster Central Tenets of Evolution Theory
(Washington Post)
Lander’s experiment tested a quirky prediction of evolutionary theory: that a harmful mutation is unlikely to persist if it is serious enough to reduce an individual’s odds of leaving descendants by an amount that is greater than the number one divided by the population of that species.

The rule proved true not only for mice and chimps, Lander said. A new and still unpublished analysis of the canine genome has found that dogs, whose numbers have historically been greater than those of apes but smaller than for mice, have an intermediate number of harmful mutations—again, just as evolution predicts.

Now, that’s what I call a central dogma.

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