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Study the given statement and answer the question. “During ‘P’ phase of the menstrual cycle, if pregnancy doesn’t happen, the ‘Q’ withers and dies, usually aroundday 22 in a 28-day cycle. The drop in ‘R’ levels causes the lining of the uterus to fall away. This is known as ‘S’. Identify P, Q, R and S.

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a

P → Menstrual, Q → Graafian follicle, R → Estrogen, S → Menarche

b

P → Luteal, Q → Corpus luteum, R → Progesterone, S → Menstruation

c

P → Ovulatory, Q → Endometrium, R → Follicle stimulating hormone, S → Menopause

d

P → Follicular, Q → Secondary oocyte, R → Luteinizing hormone, S → Menstruation

answer is B.

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Detailed Solution

During luteal (P) phase of the menstrual cycle, if pregnancy doesn't happen, the corpus luteum (Q) withers and dies, usually around day 22 in a 28-day cycle. The drop in progesterone (R) levels causes the lining of the uterus to fall away. This is known as menstruation (S).

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Study the given statement and answer the question. “During ‘P’ phase of the menstrual cycle, if pregnancy doesn’t happen, the ‘Q’ withers and dies, usually aroundday 22 in a 28-day cycle. The drop in ‘R’ levels causes the lining of the uterus to fall away. This is known as ‘S’. Identify P, Q, R and S.