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Byju's Answer
Standard XII
Biology
Abscisic Acid
Which of the ...
Question

Which of the following is both a growth promoter as well as a growth inhibitor ?

A
Auxin
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B
Gibberellic acid
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C
ABA
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D
Ethylene
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Solution

The correct option is D Ethylene
Auxin and gibberellins are growth promoter while ABA is inhibitor. Ethylene can act as both growth promoter as well as inhibitor. Ethylene causes abscission on one side then on another side promotes germination.

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