Theoretically, the production of sterile mules by interbreeding between female horses and male donkeys should
A)result in the extinction of one of the two parental species.
B)cause convergent evolution.
C)strengthen postzygotic barriers between horses and donkeys.
D)weaken the intrinsic reproductive barriers between horses and donkeys.
E)eventually result in the formation of a single species from the two parental species.

Question

Quizplus · Accepted Answer

The production of sterile mules by interbreeding between female horses and male donkeys would not result in the extinction of one of the two parental species (A) or cause convergent evolution (B). However, it would strengthen postzygotic barriers between horses and donkeys (C), as mules are sterile and cannot produce viable offspring. This would make it less likely for horses and donkeys to interbreed in the future. Although mules are hybrids, they do not weaken the intrinsic reproductive barriers between horses and donkeys (D) or result in the formation of a single species from the two parental species (E).

Theoretically, the Production of Sterile Mules by Interbreeding Between Female