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Could possible tiny genetic differences in DNA effect the average intelligence of people in other countries?
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Could possible tiny genetic differences in DNA effect the average intelligence of people in other countries?

User Drasius
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These studies suggest that genetic factors underlie about 50 percent of the difference in intelligence among individuals. ... It is likely that a large number of genes are involved, each of which makes only a small contribution to a person's intelligence. Intelligence is also strongl

User Realnero
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