A change in ovum after penetration of sperm is

At the time of penetration of sperm within the ovum, an active enzyme called____ is formed from sperm.

The corona radiate of an ovum acts as a barrier for the penetration of sperms. How do sperms overcome this barrier?

After a sperm has penetrated an ovum , the entry of other sperms is prevented by :

Maturation of sperm before penetration of ovum is called:

What helps in the penetration of egg by the sperm

Explain the penetration mechanism of a sperm into an egg.

Preparation of sperm before penetration of ovum is

Preparation of sperm before penetration of ovum is