Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : During the follicular phase of the menstrual cycle, the primary follicles in the ovary grow to become a fully mature Graafian follicle under the primary influence of progesterone. Reason R : The secretion of gonadotropins (LH and FSH) increases gradually during the follicular phase, stimulating follic

Step-by-step solution

During the follicular phase of the menstrual cycle, the primary follicles in the ovary grow to become fully mature Graafian follicles. This development is primarily stimulated by gonadotropins (FSH and LH), not progesterone. Progesterone is mainly secreted during the luteal phase by the corpus luteum. Therefore, Assertion A is false. The secretion of gonadotropins (LH and FSH) increases gradually during the follicular phase. These hormones stimulate follicular development and the secretion of estrogens by the growi