Eggs have receptors that recognize surface proteins on sperm of their own species. This illustrates ____.
A) behavioral isolation
B) gametic isolation
C) hybrid breakdown
D) hybrid inviability
E) hybrid sterility

Question

Quizplus · Accepted Answer

Gametic isolation is a prezygotic barrier where the gametes (egg and sperm) of different species meet but do not fuse to form a zygote. The presence of receptors on eggs that recognize surface proteins on sperm of their own species ensures that only sperm from the same species can fertilize the egg, preventing inter-species fertilization and thus maintaining species isolation.

Eggs Have Receptors That Recognize Surface Proteins on Sperm of Their