Human Reproduction Question 3
Question: Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Endometrium is necessary for implantation of blastocyst.
Reason R: In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium.
In the light of the above statements, choose the correct answer from the options given below:
(1) A is false but R is true.
(2) Both A and R are true and R is the correct explanation of A.
(3) Both A and R are true but R is NOT the correct explanation of A.
(4) A is true but R is false.
Show Answer
Answer: (3) Both A and R are true but R is NOT the correct explanation of A.
Explanation-
- Assertion A states that the endometrium is necessary for the implantation of the blastocyst, which is true. The endometrium is the inner lining of the uterus where the blastocyst implants and grows during early pregnancy.
- Reason R states that in the absence of fertilization, the corpus luteum degenerates, causing the disintegration of the endometrium, which is also true. The corpus luteum produces hormones that maintain the endometrium, and without fertilization, it degenerates, leading to the shedding of the endometrium (menstruation). both statements are true, Reason R does not explain why the endometrium is necessary for implantation. Therefore, the correct answer is option (3).
BETA
