Which list contains the correct sequence of structures a sperm nucleus must penetrate in order to fertilize an egg?
A) egg plasma membrane→follicle cells→zona pellucida
B) follicle cells→egg plasma membrane→zona pellucida
C) follicle cells→zona pellucida→egg plasma membrane
D) egg plasma membrane→zona pellucida→follicle cells
E) zona pellucida→follicle cells→egg plasma membrane

Question

Quizplus · Accepted Answer

The correct sequence a sperm nucleus must penetrate to fertilize an egg is: follicle cells (or cumulus cells surrounding the egg), zona pellucida (a glycoprotein layer surrounding the plasma membrane of the oocyte), and finally the egg plasma membrane itself.

Which List Contains the Correct Sequence of Structures a Sperm