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NEET Sample Paper NEET Sample Test Paper-20

  • question_answer
    How many of the following PGR helps to overcome apical dominance? Auxins, Gibberellins, Cytokinins, Ethylene

    A)  1                                

    B)  2                    

    C)    3                    

    D)    4

    Correct Answer: B

    Solution :

    Cytokinins help to produce new leaves, chloroplasts in leaves, lateral shoot growth and adventitious shoot formation. Thus, it helps to overcome the apical dominance. Ethylene influences the horizontal growth of seedlings, swelling of the axis and apical hook formation in dicot seedling, thus inhibiting apical dominance.


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