All of the Following are Reproductive Isolating Mechanisms Except

Question

All of the following are reproductive isolating mechanisms except:  
A) temporal isolation
B) mechanical isolation
C) behavioral isolation
D) genetic drift
E) gamete incompatibility

Accepted Answer

Genetic drift is not a reproductive isolating mechanism. It refers to random changes in the gene frequencies of a population, which can occur regardless of whether reproduction is occurring or not. The other options are all reproductive isolating mechanisms that prevent interbreeding between different species or populations. Temporal isolation occurs when species breed at different times, mechanical isolation refers to physical incompatibilities that prevent mating, behavioral isolation occurs when species have different courtship behaviors, and gamete incompatibility refers to physiological differences that prevent fertilization.