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Question

Apical dominance as found in higher plants is due to

A
Photoperiodism
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B
Phototropism
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C
Hormones
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D
Enzymes
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Solution

The correct option is D Hormones
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 C.

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