What prevents a foreign species' sperm from fertilizing an egg?
A)Nothing prevents fertilization if chemical and other behavioral cues allow mating
B)Egg recognition proteins on the acrosomal process bind to specific sperm receptors on the vitelline envelope
C)The size and shape of sperm must fit the hole in the egg membrane
D)The cortical reaction by the egg actively draws in the sperm

Question

Quizplus · Accepted Answer

Egg recognition proteins on the acrosomal process bind to specific sperm receptors on the vitelline envelope, which helps to prevent foreign species from fertilizing an egg. This is a form of species recognition and is crucial for ensuring successful reproduction within a given species.

What Prevents a Foreign Species' Sperm from Fertilizing an Egg