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Which of the following hormone levels will cause release of ovum (ovulation) from the graffian follicle?

1. High concentration of Progesterone
2. Low concentration of LH
3. Low concentration of FSH
4. High concentration of Estrogen

Correct answer: High concentration of Estrogen

Solution

A sustained high level of estrogen from the mature Graafian follicle triggers the LH surge, and that surge causes ovulation. Progesterone is mainly high after ovulation, while low LH or FSH would not promote follicle rupture.

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