NEET 2021 · Class 11

Cell Cycle and Cell Division

The centriole undergoes duplication during: [NEET 2021]

  1. (A)S-phase
  2. (B)Prophase
  3. (C)Metaphase
  4. (D)G2 phase

The NCERT line that answers it

Verbatim line

In animal cells, during the S phase, DNA replication begins in the nucleus, and the centriole duplicates in the cytoplasm.

Chapter
Cell Cycle and Cell Division
Section
10.1.1 Phases of Cell Cycle
Page
1
Words matched
20 of 20

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

How this line gives the answer

8333, emb=0.856, combined=0.8469). Verified: high — The span explicitly states 'the centriole duplicates in the cytoplasm' during 'the S phase', which directly matches the correct answer and distinguishes it from other phases.

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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 2021 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.