In terms of evolution, what is the phenomenon of reinforcement? A) When a gene c

Question

In terms of evolution, what is the phenomenon of reinforcement?

A) When a gene causes another gene to have a stronger rate of mutation via epistasis.

B) When two incipient have diverged sufficiently that there is postzygotic isolation between them, and there is natural selection on individuals (usually females) to mate with the other species to bring their genes back into the gene pool.

C) When two incipient have diverged sufficiently that there is postzygotic isolation between them, and there is natural selection on individuals (usually females) to avoid mating with the wrong species.

D) When genetic drift causes dominant genes to be fixed.

E) A and D

Explanation / Answer

C) When two incipient have diverged sufficiently that there is postzygotic isolation between them, and there is natural selection on individuals (usually females) to avoid mating with the wrong species.

In some cases, the natural selection itself favours the development of reproductive barriers between newly forming species, reinforcement is one of such processes.

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