Question

The corona radiata present around the female gamete is made up of ............

• A. granulosa cells
• B. cortical cells of ovary
• C. cells of theca externa
• D. cells of theca interna

Hint:

The granulosa cells form the corona radiata, providing nutrients to the oocyte during follicle development.

Answer 1

The Correct Option is A

Step 1: Understanding the corona radiata.
The corona radiata is a layer of granulosa cells that surrounds the oocyte (female gamete) in the ovary. These cells provide nourishment to the oocyte.
Step 2: Analyzing the options.
(A) granulosa cells: Correct — The corona radiata is made up of granulosa cells that surround the oocyte.
(B) cortical cells of ovary: This is not the correct structure surrounding the oocyte.
(C) cells of theca externa: These cells are part of the ovarian follicle, but they do not form the corona radiata.
(D) cells of theca interna: These cells are also part of the follicle but do not form the corona radiata.
Step 3: Conclusion.
The correct answer is (A) granulosa cells, as they form the corona radiata around the female gamete.