The purpose of the ovum's zona pellucida is to
A) make a pathway for more than one sperm to reach the ovum.
B) allow the 46 chromosomes from each gamete to merge.
C) prevent multiple sperm from fertilizing the ovum.
D) stimulate the ovum to begin mitotic cell division.

Question

Quizplus · Accepted Answer

Fertilization causes the zona pellucida to change its chemical composition so that multiple sperm cannot fertilize the ovum.Each gamete (sperm and ovum)has only 23 chromosomes.There will be 46 chromosomes when they merge.Mitotic cell division begins when the nuclei of the sperm and ovum unite.

The Purpose of the Ovum's Zona Pellucida Is to