To: PatrickHenry; VadeRetro; Piltdown_Woman; RadioAstronomer; Ichneumon
posted on 01/09/2004 3:38:10 AM PST
(To sweep, perchance to clean... Aye, there's the scrub.)
From the article:By analyzing the changes in the DNA, they have been able to distinguish positive mutations, those selected because they are good or adaptive, from negative or harmful mutations. In today's issue of the journal Science, they report that several lineages of mitochondrial DNA show signs of positive selection.
Shocking. How can this be? The creationists keep insisting that all mutations are harmful.
posted on 01/09/2004 6:52:22 AM PST
(Felix, qui potuit rerum cognoscere causas.)
Dr. Wallace and his colleagues say this correlation is evidence that the lineages were positively selected because they help the body generate more heat.
Well, this makes sense empirically. All of my ancestors came from arctic regions (if you go back far enough), none that I can recall were extremely fat, most only required one blanket for sleeping even during the coldest winters, all of them lived well into their late 80s and 90s but had brittle bones. Guess I'd better start taking more calcium and magnesium.
Swedish patriarch's first comment upon arriving in America: "Ya, sure...vell, ve go north!" ROFL! I always wondered why great-grandfather Alfred didn't bring the family to Florida.
posted on 01/09/2004 8:44:34 AM PST
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