Question

Progesterone which is the most important component of oral contraceptive pills prevents pregnancy by

• A. Preventing the formation of egg
• B. Preventing the cleavage of the fertilised egg
• C. Creating unfavourable chemical environment for the sperms to survive in the female reproductive tract
• D. Blocking ovulation

Answer 1

The correct option is D Blocking ovulation

The progesterone is primarily responsible for preventing pregnancy. The main mechanism of action is the prevention of ovulation, they inhibit follicular development and prevent ovulation.

So the answer is 'Blocking ovulation'.