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Question

Shedding of leaves and fruits is due to the hormone

A
Ethylene
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B
NAA
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C
GA
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D
ABA
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Solution

The correct option is A Ethylene
When leaves and fruits are matured, there is release of the growth hormone called as a ripening hormone. Ethylene is the ripening hormone which results in colour change and ripening of the fruits and maturation of the leaves. After maturity, the leaves and the fruits shed from the stem. This is called abscission. Ethylene causes abscission and auxin prevent abscission.
Thus, the correct answer is option A.

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