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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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