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Question

Apical dominance phenomenon is caused by :

(a) auxins (b) GA

(c) cytokinins (d) ABA

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Solution

Apical dominance is thought to be caused by the apical bud producing IAA (auxin) in abundance. This auxin is transported basipetally from the apical bud. The auxin causes the lateral buds to remain dormant.
so option( a) is correct


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