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Which hormone is responsible for ripening of fruits?
1. GA3
2. Cytokinin
3. Acetone
4. Auxin
5. Ethylene

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Correct Answer - Option 5 : Ethylene

The correct answer is ethylene.

  • Ethylene is responsible for the ripening of fruits.

  • Ethylene (C2H4) is used to prepare mustard gas (war gas).
  • Ethylene (C2H4, also known as ethene) is a gaseous organic compound that is the simplest of the alkene chemical structures (alkenes contain a carbon-carbon double bond). 

  • Auxin is a plant hormone produced in the stem tip which promotes cell elongation.
    • It moves to the darker side of the plant, causing the cells there to grow larger than corresponding cells on the lighter side of the plant.
  • Cytokinin is a plant hormone that influences growth and the stimulation of cell division.
    • It is synthesized in the roots and is usually derived from adenine

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