In negative frequency-dependent selection,such as in the study done on the water boatman insect,the incidence of predation leads to an
A)elimination of a rare genotype.
B)even distribution of genotype frequencies.
C)increase in a rare genotype.
D)increase in variation within the population.
E)increase in a rare genotype and an increase in variation within the population.

Question

Quizplus · Accepted Answer

Negative frequency-dependent selection favors rare genotypes, leading to an increase in their frequency. In the study on water boatman insects, those with rare ventral coloration had a survival advantage because they were more difficult for predators to detect. As a result, the frequency of the rare genotype increased over time.

In Negative Frequency-Dependent Selection,such as in the Study Done on the Water