A) Corpus luteum will disintegrate
B) Oestrogen secretion further decreases
C) Primary follicle starts developing
D) Progesterone secretion rapidly declines
Correct Answer: C
Solution :If mammalian ovum fails to get fertilised, the corpus luteum degenerates. This causes disintegration of endometrium leading to menstruation and start of a new cycle. Progesterone secretion declines and the primary follicle starts to develop again.
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