Researchers suspect that the gene FOXP2, which is involved in speech and cognition, has been under positive selection in the human lineage.Which of the following would provide the strongest support for such a claim?

Question

Quizplus · Accepted Answer

A higher rate of nonsynonymous substitutions (changes that alter the encoded protein) compared to synonymous substitutions (changes that do not alter the encoded protein) would suggest that the FOXP2 gene has been undergoing positive selection in humans, as this would indicate that the changes are beneficial and have been favored by natural selection.

Researchers Suspect That the Gene FOXP2, Which Is Involved in Speech