NEET Biology question

Why does fusion of sperm and ovum not occur during pregnancy?

(A)High levels of oestrogen and progesterone maintained by the corpus luteum (and later the placenta) during pregnancy inhibit the secretion of gonadotropins and ovulationCorrect
(B)A woman cannot have intercourse during pregnancy
(C)High levels of HCl kill the released ovum
(D)The ova released during pregnancy are abnormal

Answer: (A)

Solution

Sustained high oestrogen and progesterone levels during pregnancy exert negative feedback on the hypothalamus-pituitary axis,

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Question ID VK-122432