Question

25. 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 1

In areas of the world where HIV infection rates are high, human populations are evolving as individuals with heritable traits resistant to HIV are more likely to survive and reproduce.

Step-by-step explanation:

In areas of the world where HIV infection rates are high, human populations are indeed evolving. The presence of heritable traits that make some individuals resistant to HIV allows those individuals to survive and reproduce while non-resistant individuals are at a higher risk of infection and death.

Over time, the heritable traits that confer resistance to HIV should increase in the population, resulting in a higher proportion of resistant individuals.