A team of researchers with members from several institutions in the U.S., one from Peru and one from India, has found evidence of gene markers in native Andean people that may help them survive at high altitudes, where oxygen levels can sometimes be half as much as lowland areas. In their paper published in Proceedings of the National Academy of Sciences, the group describes their study, which involved comparing part of the genome of highland people with lowland people.
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Source: Phys.org