Zoology-Menstrual Cycle
NEET Zoology Menstrual Cycle Assertion Reason Question
Type: Assertion Reason-assertion-Easy-Class 12
Assertion (A): The menstrual phase only occurs if the released ovum is not fertilized. | Reason (R): Lack of menstruation can indicate pregnancy but may also be due to stress or poor health.
A
Both A and R are true, and R is the correct explanation of A.
B
Both A and R are true, but R is not the correct explanation of A.
C
A is true, but R is false.
D
A is false.
Correct Answer
Option A
Detailed Explanation
The menstrual phase results from the breakdown of the endometrial lining, which only occurs if the ovum is not fertilized. Lack of menstruation may indicate pregnancy or other factors like stress or poor health, which explains the assertion.
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