To the user "PsyDAG" that has responded to this post.
This platform/website is exactly used for doing the work for others. One person does the work and posts it here for others to use. It can be used a bunch of different ways, its main purpose is to help others understand things.
The Tibetans and Han Chinese share several genetic traits and DNA. However, the EPAS1 gene, which increases the ability of red blood cells to carry oxygen even in low oxygen environments, is only commonly found in the Tibetan population that live in higher elevations. Explain why this gene is only common in Tibetan populations from the perspective of competitive advantage and natural selection. Write your answer in three to five sentences.
5 answers
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While both groups share traits and DNA only one group needed or used certain traits. The Tibetans gained a competitive advantage to live at higher altitudes than the Han Chinese. They gained this advantage through natural selection, which prevented un-useful traits from being passed on.