Phototropic curvature is the result of uneven distribution of ...................

Auxin

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Gibberellin

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Phytochrome

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Cytokinins

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Solution

The correct option is A Auxin
Auxin is a plant hormone which has several functions in plant life. It is responsible for cell elongation, cell multiplication, apical dominance and even phototactic movement. Thus the uneven distribution of auxin hormone can cause phototropic curvature. It was confirmed by the bioassay of Avena coleoptile curvature test.

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Phototropic curvature is the result of uneven distribution of:

The phototropic curvature is the result of uneven distribution of:

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