A zebra was bred in captivity with a horse.The resulting offspring were all sterile.This can be thought of as a ________
A) Sympatric species
B) Allopatric species
C) Post-zygotic barrier
D) None of the above

Question

Quizplus · Accepted Answer

The fact that the offspring of a zebra and a horse are sterile suggests that there is a post-zygotic barrier preventing the development of viable offspring. This barrier occurs after fertilization, so it is not caused by a sympatric or allopatric separation between the two parent species.

A Zebra Was Bred in Captivity with a Horse