Apical dominance is caused by

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(A) Apical dominance is a phenomenon where the main central stem of the plant grows more dominantly than the side stems. This process is primarily cau

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Auxin

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(A) Apical dominance is a phenomenon where the main central stem of the plant grows more dominantly than the side stems. This process is primarily caused by the hormone $Auxin$,which is synthesized at the shoot tips. $Auxin$ inhibits the growth of lateral buds,thereby promoting the vertical growth of the plant.

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