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The hormone responsible for enhancement of the respiration rate of fruits thereby leading to its early ripening is ________

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in Biology – Class 11 by (272k points)
The hormone responsible for enhancement of the respiration rate of fruits thereby leading to its early ripening is ________

(a) Auxin

(b) GA3

(c) Ethylene

(d) ABA

The question was asked during an internship interview.

My question comes from Growth Regulators in Plants in division Plant Growth and Development of Biology – Class 11

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Correct option is (c) Ethylene

The explanation is: Ethylene is the hormone responsible for enhancement of the respiration rate of fruits thereby leading to its early ripening. Auxin and GA3 induces parthenocarpy of fruits. ABA acts as a stress hormone.

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