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    Question

    Flowering in long day and short day plants is controlled

    by the pigment 
    A Florigen Correct Answer Incorrect Answer
    B Auxin Correct Answer Incorrect Answer
    C Cytokinin Correct Answer Incorrect Answer
    D Phytochrome Correct Answer Incorrect Answer

    Solution

    Phytochrome is a pigment involved in the detection of light duration and can trigger long-day or short-day plants to flower when the correct day length conditions are met

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