Question

How there is a connection between corona radiata and zona pellucida?

• A. Both are involved in the fertilization process.
• B. They are both involved in the formation of the blastocyst.
• C. They both provide nourishment to the egg.
• D. They are both layers of the ovum, but have different functions.

Hint:

Remember, the zona pellucida facilitates fertilization by interacting with sperm, while the corona radiata assists in nourishing and protecting the egg.

Answer 1

The Correct Option is D

The corona radiata and zona pellucida are both layers of the egg (ovum) but serve different functions: - The corona radiata is a layer of follicular cells that surround the egg, providing protection and nutrients. - The zona pellucida is a glycoprotein layer that surrounds the egg, playing a critical role in fertilization by binding sperm and preventing polyspermy. Thus, they are both layers of the ovum but have distinct roles in the reproductive process.