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NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice

Genetic dwarfness in plants can be resolved by

Options

  1. ALower ABA contents
  2. BHigher endogenous auxin contents
  3. CHigher endogenous gibberellins contents
  4. DHigh ethylene content

Correct answer

C. Higher endogenous gibberellins contents

Step-by-step solution

One of the most striking effects of gibberellins is the elongation of genetic dwarf (mutant) varieties of plants like corn and pea. It is believed that dwarfism in the mutant variety of plant is due to blocking of the capacity for normal gibberellin production (deficiency of gibberellin). When gibberellin is applied to single gene dwarf mutants they grow to their normal heights.

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