Re-NEET 2026 · Question 127 · Class 11

Plant Growth and Development

Which of the following plant growth regulators promotes internode elongation prior to flowering in cabbage?

  1. (A)Absciscic acid
  2. (B)Gibberellin
  3. (C)Indole butyric acid
  4. (D)Ethephon

The NCERT line that answers it

Verbatim line

Gibberellins also promotes bolting (internode elongation just prior to flowering) in beet, cabbages and many plants with rosette habit.

Chapter
Plant Growth and Development
Section
13.4.3 Physiological Effects of Plant Growth Regulators
Page
10
Words matched
19 of 19

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

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that gibberellins promote bolting (internode elongation just prior to flowering) in cabbages, which directly matches the question and distinguishes gibberellin from the other options.

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Question text is reproduced from the published Re-NEET 2026 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.