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Question
Which of the following is caused by gibberellins?
Options:
A .  Bolting in cabbage
B .  Morphogenesis in tobacco callus
C .  Rapid divisions in carrot cells
D .  Elongation of oat coleoptile
Answer: Option A
:
A
Bolting (internode elongation) just prior to flowering in cabbage is a test for gibberellin. Gibberelin helps in stem elongation.

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