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    Question

    In tissue culture regeneration of shoot and root occurs

    by manipulating the balance of:
    A Auxin and ABA Correct Answer Incorrect Answer
    B Auxin and Cytokinin Correct Answer Incorrect Answer
    C Cytokinin and ABA Correct Answer Incorrect Answer
    D ABA and Ethylene Correct Answer Incorrect Answer

    Solution

    The shoot buds or monopolar structures are formed by manipulating the ratio of cytokinin to auxin in the cultures, as auxin is responsible for root growth and cytokinin is important for shoot growth.

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