Question

The glycoprotein fertilizin is secreted by

• A. Ovum
• B. Ovary
• C. Sperm
• D. Testis

Answer 1

Answer: (A)

Ovum

The fertilizin of an egg interacts with the anti fertilizin of sperm of the same species. This attraction between fertilizin and antifertilizin makes the sperms stick to the egg surface. The process of acquiring the capacity to fertilize the egg by the sperm is called capacitation. In this process, the membrane surrounding the acrosome of the sperm breaks and releases its contents, the sperm lysin. It is the chemical substance present in the sperm’s acrosome.

So the correct option is 'Ovum'.