Question

During what phase of menstrual cycle are primary follicles converted to Graafian follicles?

(a) Menstrual phase

(b) Follicular phase

(c) Luteal phase

(d) Secretory phase

This question was posed to me in class test.

This interesting question is from Human Reproduction in chapter Human Reproduction of Biology – Class 12

Answer 1

The correct answer is (b) Follicular phase

Easy explanation: Primary follicles mature with the addition of theca, granulosa cells, and antrum to form a mature Graafian follicle. All of these changes along with the completion of the first round of meiosis occurs during the follicular phase also otherwise called as the proliferative phase.