In a positive phototropic response of a coleoptile, the region of greatest curvature is brought about by the
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- A Movement of auxins away from the region of curvature
- B Even distribution of auxins in all parts of the coleoptile
- C Inhibition of growth by auxins in the region f smaller curvature
- D Concentration of auxins in the region of curvature
- E Absence of auxins in the coleoptile
Correct Answer: Option D
Explanation:
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