Select all of the following that are postzygotic isolating mechanisms.
A)Hybrids are sterile.
B)Hybrids develop abnormally.
C)Hybrids fail to become established in nature.
D)Hybrids cannot be formed.

Question

Quizplus · Accepted Answer

Postzygotic isolating mechanisms refer to barriers that occur after fertilization, preventing hybrids from passing on their genes. Sterility of hybrids (A), abnormal development of hybrids (B), and failure of hybrids to establish in nature (C) are all examples of postzygotic barriers. Choice D is incorrect because it describes a prezygotic barrier, where hybrids cannot be formed in the first place.

Select All of the Following That Are Postzygotic Isolating Mechanisms