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NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice

ABA is involved in

Options

  1. ADormancy of seeds
  2. BRoot elongation
  3. CShoot elongation
  4. DIncreased cell division

Correct answer

A. Dormancy of seeds

Step-by-step solution

Abscisic acid acts as a growth inhibitor and induces dormancy of buds towards the approach of winter. Dormancy of seeds is mainly caused by abscisic acid. Because of its action in inducing dormancy abscisic acid (ABA) is also called dormin. The buds, as well as seeds, sprout only when abscisic acid is overcome by gibberellins.

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