Human Odyssey - DNA studies

[elleng]

"Human genetic diversity decreases the further one gets from Africa, the cradle of humanity. . .

Americans of European descent have more potentially damaging mutations in their DNA than African-Americans, a finding that settles a long-standing debate.

It is now clear, the researchers say, that all persons of European descent, and not just isolated geographic groups, experienced a "genetic bottleneck" -- probably between 30,000 and 100,000 years ago -- as a small, founding population moved into present-day Europe.

As a result, the gene pool in Europe was restricted, and possibly harmful mutations in DNA were handed down over the generations instead of being flushed out of the genome through the evolutionary process of natural selection."

http://rawstory.com/news/afp/Out_of_Africa_Human_odyssey_is_trac_02202008.html

[DCKit]

1. O.K., but what do they have to say about Democrats? n/t