NEET Zoology Menstrual Cycle MCQ Question
Which combination of statements about the menstrual cycle is correct?
The menstrual phase lasts for 3-5 days and is followed by the follicular phase, during which estrogen levels rise.
The luteal phase occurs before ovulation and involves the secretion of progesterone by the corpus luteum.
Menstruation occurs only if the ovum is fertilized, and its absence can indicate pregnancy.
LH and FSH peak levels occur at the end of the menstrual cycle, triggering the development of primary follicles.
Correct Answer
Detailed Explanation
Statement A is correct as it accurately describes the menstrual phase and the subsequent follicular phase. Statement B is incorrect because the luteal phase follows ovulation, not precedes it. Statement C misstates that menstruation occurs only if the ovum is fertilized, as it occurs when it is not. Statement D is incorrect as LH and FSH peak levels occur around the mid-cycle, not at the end.
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