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Tibetans Underwent Fastest Evolution Seen in Humans

• LiveScience

Life at high altitudes forced ancient Tibetans to undergo the fastest evolution ever seen in humans, according to a new study.

The most rapid genetic change showed up in the EPAS1 gene, which helps regulate the body's response to a low-oxygen environment. One version, called an allele, of the EPAS1 gene changed in frequency from showing up in 9 percent of the Han Chinese to 87 percent of Tibetans.


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