NEET 2022 Re · Class 12

Human Reproduction

Assertion (A): During pregnancy the level of thyroxine is increased in the maternal blood. Reason (R): Pregnancy is characterised by metabolic changes in the mother. In the light of the above statements, choose the most appropriate answer from the options given below.

  1. (A)(A) is not correct but (R) is correct
  2. (B)Both (A) and (R) are correct and (R) is the correct explanation of (A)
  3. (C)Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  4. (D)(A) is correct but (R) is not correct

The NCERT line that answers it

Concept-grounded

In addition, during pregnancy the levels of other hormones like estrogens, progestogens, cortisol, prolactin, thyroxine, etc., are increased several-folds in the maternal blood.

Chapter
Human Reproduction
Section
2.6 PREGNANCY AND EMBRYONIC DEVELOPMENT

The answer is taught in this NCERT section but is not one quotable sentence. It needs combining facts or applying the idea.

How this line gives the answer

Claim discrepancy: claimed B, GPT says C. Matched with override at hybrid rank 1.

We did this for 1,565 questions.

Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.

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Question text is reproduced from the published NEET 2022 Re paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.