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NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice

Find the odd one out from the options showing certain auxins.

Options

  1. AIndole acetic acid
  2. B2,4-D
  3. CIndole butyric acid
  4. DNaphthalene acetic acid

Correct answer

B. 2,4-D

Step-by-step solution

Auxins are plant growth promoters responsible for apical dominance. 2,4-D or 2,4- dichlorophenoxyacetic acid is a synthetic auxin. IAA, IBA, and NAA are naturally occurring auxins.

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