Q.

Both auxins and cytokinins are growth promoting hormones in plant metabolism. They are synergistic for a physiological process ‘A’ and antagonistic for a process ‘B’. A and B are respectively

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a

Delay of senescence and flowering

b

Cell division and apical dominance

c

Dormancy and stomatal control

d

Parthenocarpy and bolting

answer is B.

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Detailed Solution

 Auxins and cytokinins are synergistic for a physiological process cell division and antagonistic for a process apical dominance  ( auxins promotes apical dominance and cytokinins prevents apical dominance by inducing growth of lateral branches)

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