Some humans have heritable traits that make them resistant to infection by HIV. In areas of the world where HIV infection rates are high, are human populations evolving? Explain your logic.
a. No. HIV infection rates would not affect human evolution.
b. Yes. The heritable traits that confer resistance to HIV should increase over time.
c. No. The heritable traits that confer resistance to HIV should decrease over time.
d. Yes. The heritable traits that confer resistance to HIV should decrease over time.
Answer: b. Yes. The heritable traits that confer resistance to HIV should increase over time.
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