How does the zona pellucida of the ovum help | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) During fertilization,when the first sperm comes in contact with the $zona$ $pellucida$ layer of the ovum,it induces changes in the membrane. Speci

Vedclass · Accepted Answer

It undergoes a chemical change that prevents other sperms from binding.

Vedclass · Answer

(B) During fertilization,when the first sperm comes in contact with the $zona$ $pellucida$ layer of the ovum,it induces changes in the membrane. Specifically,the cortical granules present beneath the plasma membrane of the ovum release enzymes that alter the structure of the $zona$ $pellucida$. This change,often referred to as the 'zona reaction',renders the $zona$ $pellucida$ impermeable to other sperms,thereby effectively preventing polyspermy.

How does the $zona$ $pellucida$ of the ovum help in preventing polyspermy?

Similar Questions

Sperm of animal species $X$ cannot fertilize ovum of species $Y$ because . . . . . . .

How is an ectopic pregnancy identified?

What is the most likely reason for the absence of regular menstruation in women?

The outer layer of the blastocyst is called:

Where does fertilization of the ovum occur in mammals?

Vedclass Test Series

Exam Paper Generator

Online Exam Module