If Chimpanzee and Human Genomes Differ Only About 1

question 21

Multiple Choice

If chimpanzee and human genomes differ only about 1.3% at the level of DNA base pairs, how might we explain the dramatic differences in appearance, behavior, cultures, and so on between humans and chimps?

• A) There is a correlation between increased rates of divergence with known functions of alleles in humans and chimps.
• B) Natural selection has been acting on clusters of genes associated with both survival and reproduction in humans and chimps.
• C) Important differences exist in the expression of genes in humans and chimps.
• D) Humans and chimps have been diverging from each other for much longer than they have with other primates.

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