What term describes the failure of one species' sperm to fertilize the egg of a different species?
A) Hybrid weakness
B) Gametic incompatibility
C) Mechanical incompatibility
D) Mating time differences

Question

Quizplus · Accepted Answer

Gametic incompatibility occurs when the sperm of one species is not able to fertilize the egg of a different species due to differences in the proteins on the surface of the gametes. This often leads to reproductive isolation between the two species. Hybrid weakness refers to a reduced viability or fertility of the offspring produced from the mating of two different species. Mechanical incompatibility refers to physical differences that prevent mating or fertilization, such as differences in genitalia. Mating time differences refer to differences in the timing of breeding behaviors between two species.

What Term Describes the Failure of One Species' Sperm to Fertilize