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  1. Apical dominance is caused by
    1. abscisic acid in lateral bud
    2. cytokinin in leaf tip
    3. gibberellin in lateral buds
    4. auxin in shoot tip
Correct Option: D

Apical dominance is the phenomenon by which presence of apical bud does not allow lateral buds to grow. Apical dominance is due to auxin. When shoot tip is cut; then lateral buds start growing.



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