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Question

Pick up the correct information about menstrual cycle control.
1. Estrogen and progesterone of ovary
2. FSH of pituitary
3. FSH and LH of pituitary
4. Oxytocin.


A
1, 2, 3 correct
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B
1, 2 correct
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C
2, 4 correct
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D
1, 3 correct
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Solution

The correct option is D 1, 3 correct
Menstrual cycle starts with the menstrual flow followed by the follicle phase. During the follicular phase levels of gonadotropins (FSH and LH) increase and also the levels of estrogen increase. This rapid secretion of LH and FSH leads to LH surge and hence ovulation. After the ovulation luteal phase is accompanied by the formation of Corpus luteum. The Corpus luteum is responsible for the secretions of progesterone. 
So,  the correct option is '1, 3 correct'.

Biology

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