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Question

Cell division is initiated by

A
Cytokinin
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B
Auxin
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C
Gibberellin
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D
ABA
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Solution

The correct option is B Cytokinin
The cytokinin hormones promote cell division and tissue growth, and depend upon the presence of auxins to determine the extent of their activity. When the ratio of cytokinins to auxins is relatively high, stem and leaf growth is stimulated.
So the correct option is 'Cytokinin'.

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