Sexual reproduction would be least likely to evolve when
A) parasites are frequent.
B) DNA repair is exceptionally good.
C) particular combinations of alleles not currently present in the population are favored.
D) population sizes are small.
E) environmental conditions are variable from generation to generation.

Question

Quizplus · Accepted Answer

Sexual reproduction can often result in increased genetic diversity and the shuffling of alleles, which can help populations adapt to changing environments and resist parasites. However, DNA repair mechanisms can often limit the accumulation of mutations and reduce the benefits of sexual reproduction. Therefore, if DNA repair is exceptionally good, then there may be less pressure for organisms to evolve sexual reproduction.

Sexual Reproduction Would Be Least Likely to Evolve When