Physics NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 9 PCB MCQ (Single Correct)

In the early stage, leaves and fruits do not fall off, but when they become mature, they do. Which of the following hormones is/are associated with the early and later phases respectively?

A
Ethylene and Abscisic acid
B
Cytokinin and Ethylene
C
Only Auxin
D
Only Gibberellin

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Text Solution

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The correct answer is:
C

Auxins prevent fruit and leaf drop at early stages but promote the abscission of older, mature leaves and fruits.

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