Q.

           is concerned with cell division.

A. Maleic hydrazide
B. Gibberellin
C. Auxins
D. Cytokinin
Answer» D. Cytokinin
Explanation: Cytokinins are a group of hormones that promote cell division in plant roots and MOD shoots and the growth of buds Cytokinins increase cell division by stimulating the duction of proteins needed for mitosis.
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