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Question

Went theory is related to

A
Phototropism
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B
Hydrotropism
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C
Chemotropism
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D
All of the above
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Solution

The correct option is A Phototropism
The Went theory states that plant tropism in shoots is due to the unequal distribution of the growth regulator auxin in reponse to light (phototropism).

Hydrotropism- The growth of plant roots towards moisture is an instance of positive hydrotropism and turning away from moisture is an instance for negative geotropism.
Chemotropism is known as growth or movement of plant parts towards the chemical stimulus.

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