AIIMS 2018 Zoology Parturition MCQ Question
Assertion: In females, parturition occurs after the pregnancy. Reason: Signal for parturition originates from fully developed embryo.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not correct explanation of A
A is true but R is false
A and R are false
Correct Answer
Detailed Explanation
Option C is correct because the assertion is true: parturition indeed occurs after pregnancy, marking the process of childbirth. However, the reason is false; while signals for parturition are influenced by the developing fetus, they primarily originate from hormonal changes in the mother, particularly involving oxytocin and prostaglandins, rather than directly from a fully developed embryo. Option A is true, but option R is incorrect, which rules out options A and B. Option D is incorrect as it dismisses the truth of the assertion regarding parturition.
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