Apical dominance is caused by

Abscisic acid in lateral bud

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Cytokinin in leaf tip

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Gibberellin in lateral buds

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Auxin in shoot tip

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Solution

The correct option is B Auxin in shoot tip
Apical dominance is a phenomenon in which central stem is dominant and lateral stems are suppressed. It is due to plant hormones produced in the tip of the shoot. Auxin hormone is responsible for apical dominance and cytokinin hormone is responsible for breaking the apical dominance.
Thus, the correct answer is option D.

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In majority of vascular plants, apical bud dominate over lateral buds.

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