NEET 2000 · Class 12

Reproductive Health

What is the work of progesterone which is present in oral contraceptive pills? (2000)

  1. (A)To inhibit ovulation
  2. (B)To check oogenesis
  3. (C)To check entry of sperms into cervix and to make them inactive
  4. (D)To check sexual behaviour

The NCERT line that answers it

Verbatim line

They inhibit ovulation and implantation as well as alter the quality of cervical mucus to prevent/retard entry of sperms.

Chapter
Reproductive Health
Section
3.2 POPULATION STABILISATION AND BIRTH CONTROL
Page
4
Words matched
19 of 19

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

2, emb=1.0, combined=0.68). Verified: high — The span explicitly states 'They inhibit ovulation', which directly matches the correct answer option A and distinguishes it from the other options.

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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 2000 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.