Auxin and cytokinin are antagonistic in which of the following functions?

Cell division

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Phototropism

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Apical dominance

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Geotropism

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Solution

The correct option is C Apical dominance
Auxins are produced in the apical buds and they inhibit the growth of lateral buds on the stem thus leading to apical dominance. Whereas cytokinins promote the growth of lateral buds over and above the apical buds thereby antagonising the action of auxins.
So, the correct answer is, 'Apical dominance'.

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