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BHU PMT BHU PMT (Screening) Solved Paper-2005

  • question_answer
    In callus culture, roots can be induced by the supply of:

    A)  auxin                                   

    B)  cylokinin

    C)  gibberellin                         

    D)  ethylene

    Correct Answer: A

    Solution :

                     Tissue culture is the technique of maintaining and growing cells, tissue etc., and their differentiation on artificial medium under aseptic condition. Callus is irregular, unorganized and undifferentiated mass of actively dividing cells. Differentiation of callus is under control of two hormones auxin and cytokinin.
    Development of Condition
    Root \[\frac{\text{Auxin}}{\text{Cytokinin}}\text{=High}\]
    Shoot \[\frac{\text{Auxin}}{\text{Cytokinin}}\text{=Low}\]
    Both root and shoot \[\frac{\text{Auxin}}{\text{Cytokinin}}\text{=Intermediate}\]


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