jueves, 26 de marzo de 2015

Interstellar Origins : The Mysterious Origins of Pale Skin

Even geneticists find pale skin to be a mystery…

Pale Skin Suddenly Appeared 10,000 Years Ago

Pale skin has only existed for 10-20,000 years, and apparently it “started” with one person in Central Asia, which includes Siberia and the Arctic

About 20,000 years ago, a person lived somewhere  Central Asia who bequeathed the genetic coding variant for lighter skin not only to all Europeans, but also many Indian people.   …all existing instances of this mutation originate from the same person. 

Where did this mystery person come from?

Blue Eyes Suddenly Appeared 10,000 Years Ago

most blue eyed Europeans share the exact same DNA difference that causes their blue eyes.  Given that there are lots of ways to get blue eyes, this suggests that the people who share this DNA difference all came from the same original ancestor (or founder).  By studying the DNA in a bit more detail, scientists have concluded that this original blue-eyed ancestor probably lived near the Black Sea around 6,000-10,000 years ago.

(Source: selfuni.wordpress.com)

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