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  • Plant Anatomy and Cytogenetics
  • ______ is involved in the biosynthesis of IAA
Multiple choice

______ is involved in the biosynthesis of IAA

  1. Boron

  2. Copper

  3. Manganese

  4. Zinc

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Zinc is required for the biosynthesis of IAA (Indole-3-Acetic Acid), the primary auxin in plants. Zinc acts as a cofactor for enzymes involved in tryptophan synthesis, which is a precursor for IAA production.

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