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Question 1

If chimpanzee and human genomes differ about 1.3% at the level of DNA base pairs, how can we explain the dramatic differences in appearances, behavior, cultures, etc., between humans & chimps?

Answer 1

Important differences exist in the expression of genes in humans & chimps

Question 2

More than 100 years ago, Charles Darwin and his colleague Thomas Huxley hypothesized that humans share a common ancestor based on

Answer 2

anatomical evidence