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Question

Which of the following movement is not related to auxin level?

A
Bending of shoot towards light
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B
Movement of root towards soil
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C
Nyctinastic leaf movements
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D
Movement of sunflower head tracking the sun
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Solution

The correct option is B Nyctinastic leaf movements
Nytinastic leaf movements is not related to auxin level. It is a rhythmic nastic movement of leaves in response to the darkness. It is controlled by biological clock.
Thus, the correct answer is option C.

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