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Plant hormone "AUXIN" is:

Correct answer: D. Indole Acetic Acid

  • A. Acetic Acid
  • B. Ethyl Acetic Acid
  • C. Methyl Acetic Acid
  • D. Indole Acetic Acid

Explanation

Naturally occurring auxin = Indole-3-acetic acid (IAA). Regulates cell elongation, apical dominance, phototropism, root initiation, and callus formation.

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