Thursday, 23 July 2009
12:33:12 AM (GMT)
"Around six to ten thousand years ago, the OCA2 gene in a human's chromosomes
mutated. This mutation resulted in the turning off of the what allows humans to have
brown eyes. As the blue-eyed trait is a recessive gene from only one person, it took
a couple of generations for it to actually show up physically. The first "mutated"
person would have still had brown eyes. Their offspring would still have brown eyes.
But when two of the offspring (say biological cousins, generations later) reproduced,
the two of them would allow the recessive blue gene to come forward in their
So essentially all blue-eyed people are indirectly inbred. You can thank the Danes
for this interesting research.
Eiberg, Hans. "University of Copenhagen - News." Benhavns Universitet. 16 July
"FOXNews.com - Scientist: All Blue-Eyed People Are Related - Science News | Science &
Technology | Technology News." Breaking News | Latest News | Current News -
FOXNews.com. 1 Feb. 2008. 16 July 2009 ."