Question

The mechanism of fertilization involves different events like approximation of gametes, acrosomal reaction activation of egg and amphimixis. According to F.R. Lillie approximation occurs due to interacting complementary substances called fertilizin and anti fertilizin.
The fertilization membrane is formed in order to

• A. Fecilitate the entry of sperm into the egg
• B. Provide stability to the egg
• C. Prevent monospermy
• D. Prevent polyspermy

Answer 1

The correct option is D Prevent polyspermy

The fertilization membrane is formed following the initial sperm-egg interaction around a fertilized ovum. It prevents penetration by additional spermatozoon (or prevents polyspermy).

Thus, the correct answer is option (D).