If there were a high allele frequency for the CCR5-32 coreceptor,and the rate of infection with HIV was high as well,one would expect the frequency of the CCR5-32 coreceptor allele to ________.
A) remain the same due to the lethality of AIDS
B) remain the same due to the population maintaining Hardy-Weinberg equilibrium
C) fall quickly due to heterozygote selection
D) rise quickly and confer resistance on a large part of the population

Question

Quizplus · Accepted Answer

The CCR5-32 coreceptor allele has been shown to confer resistance to HIV infection. Therefore, if there is a high frequency of this allele in a population with a high rate of HIV infection, natural selection should favor individuals with this allele, leading to a rapid increase in its frequency.

If There Were a High Allele Frequency for the CCR5-32