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Some mean-level differences were found: African American parents exhibited lower levels of prosocial rewards, higher levels of psychological costs, and lower problem solving when compared to European Americans. Gurdon had proven something that many scientists had argued about. If 70,000 mutations are needed in 7 million years, with seven years to a generation, there are a million generations, with one mutation needed every fourteen generations or so.

Pages: 24

Publisher: Raintree (September 11, 2014)

ISBN: 1406284378

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