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Question

Cell elongation in internodal regions of the green plants taken place due to

A
Indole acetic acid
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B
Cytokinins
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C
Gibberellins
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D
Ethylene
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Solution

The correct option is B Gibberellins
Gibberellin is the growth regulator that regulates the developmental cycle of higher plants. It stimulates the cell elongation in the internodal region by altering the rheological property of the cell wall and as a result, the cell gets lengthen.

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