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Which of the following events is unlikely to happen when an ovum is fertilized?

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High progesterone levels.

Corpus luteum is intact.

Endometrium is sloughed off.

No new follicles develop.

answer is C.

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Detailed Solution

When ovum is fertilized, hCG rescues corpus luteum and it continues to secrete progesterone. This hormone in turn maintains endometrium(it does not slough in the period of pregnancy). No new follicles develop during this period.

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