NEET 2009 Biology question

Which one of the following is the correct matching of the events occurring during menstrual cycle?

(1)Proliferative phase : Rapid regeneration of myometrium and maturation of Graafian follicle.
(2)Development of corpus luteum : Secretory phase and increased secretion of progesterone.Correct
(3)Menstruation : breakdown of myometrium and ovum not fertilised.
(4)Ovulation : LH and FSH attain peak level and sharp fall in the secretion of progesterone.

Answer: (2)

Solution

After ovulation the ruptured Graafian follicle turns into the corpus luteum, which secretes large amounts of progesterone; this corresponds to the secretory (luteal) phase of the cycle, when the endometrium becomes thick and glandular. So (2) is correct. (1) is wrong because in the proliferative (follicular) phase it

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Question ID VK-090193