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Darwins' phototropism experiment and Went’s coleoptile tip experiment are related to which of the following hormone:
Question

Darwins' phototropism experiment and Went’s coleoptile tip experiment are related to which of the following hormone:

A.

Cytokinin

B.

Auxin

C.

Gibberellic acid

D.

Ethylene

Correct option is B

Auxin is the plant hormone linked to Darwins' phototropism and Went’s coleoptile tip experiments. These studies demonstrated that auxin accumulates on the shaded side of a plant, promoting elongation and bending toward light.

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