Which of the following processes is concerned with Cholodny-Went theory?

Photomorphogenesis

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Photoperiodism

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Phototropism

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Photorespiration

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Solution

The correct option is C
Phototropism

Phototropism of stem and roots are due to differential hormonal effect. The mechanism is believed to be based on Cholodny-Went theory, which states that unilateral light produces more auxin (IAA) and hence, more growth in the shaded side resulting in bending of the stem.

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Cholodny-Went theory is concerned with which of the following processes:

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