NEET Biology question

Study the graph of gonadotropin (FSH and LH) levels across the menstrual cycle and correlate the hormone levels for (i) days 1-5, (ii) days 12-14, and (iii) days 25-28 (if the ovum is not fertilised).

(A)(i) LH decreases and FSH increases; (ii) LH increases and FSH decreases; (iii) LH level maintained and FSH level increases
(B)(i) LH increases and FSH increases; (ii) LH decreases and FSH decreases; (iii) LH peaks and FSH peaks
(C)(i) LH and FSH are both relatively low; (ii) LH peaks and FSH also peaks; (iii) Both FSH and LH decreaseCorrect
(D)(i) LH increases and FSH decreases; (ii) LH increases and FSH peaks; (iii) LH level decreases and FSH level maintained

Answer: (C)

Solution

During days 1-5 (menstrual phase) both gonadotropins are at a relatively low baseline; around days 12-14 the LH surge occurs together with a smaller

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Question ID VK-122457