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NEETBotanyPlant - Growth and Development

Which of the following is an example of an indole compound?

Options

  1. AGibberellic acid (GA3)
  2. BAbscisic acid (ABA)
  3. CIndole-3-acetic acid (IAA)
  4. DEthylene (C2H4)

Correct answer

C. Indole-3-acetic acid (IAA)

Step-by-step solution

The plant growth regulators (PGRs) are small, simple molecules of diverse chemical composition. They could be indole compounds (indole-3-acetic acid, IAA), adenine derivatives (N6 -furfurylamino purine, kinetin), derivatives of carotenoids (abscisic acid, ABA); terpenes (gibberellic acid, GA3) or gases (ethylene, C2H4).

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