Which of the following is least likely to help maintain genetic variation?
A) Directional selection
B) The mating advantage of heterozygotes
C) Varying environments
D) Sexual recombination
E) Frequency-dependent selection

Question

Quizplus · Accepted Answer

Directional selection favors individuals with traits at one extreme of the phenotypic range, causing a shift in the overall population towards that trait. This reduces genetic variation as the favored allele becomes more frequent and the less favored allele decreases or may even become extinct. Therefore, it is the least likely to help maintain genetic variation.

Which of the Following Is Least Likely to Help Maintain