NEET 2023 Phase 1 · BiologyPrevious Year Question
Which of the following statements are correct regarding female reproductive cycle? A. In non-primate mammals cyclical changes during reproduction are called oestrus cycle. B. First menstrual cycle begins at puberty and is called menopause. C. Lack of menstruation may be indicative of pregnancy. D. Cyclic, menstruation extends between menarche and menopause. Choose the most appropriate answer from the options given below: (NEET 2023)
Answer: (D) (d) A, C and D only. Answer: (d) A, C and D only Solution: A is correct — in non-primate mammals the cyclical reproductive changes are called the oestrus cycle.
- A.(a) A and D only
- B.(b) A and B only
- C.(c) A, B and C only
- D.(d) A, C and D only✓
Correct Answer
(D) (d) A, C and D only
Solution & Explanation
Answer: (d) A, C and D only Solution: A is correct — in non-primate mammals the cyclical reproductive changes are called the oestrus cycle. C is correct — lack of menstruation may be indicative of pregnancy. D is correct — cyclic menstruation extends between menarche and menopause. B is wrong because the first menstrual cycle at puberty is called menarche (menopause is the cessation around age 50). Hence A, C and D only. NCERT Reference: Ch 2, p.35, line 19 — "reproductive phase and extends between menarche and menopause."
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