First slide

Plant Growth Regulators

Question

Cell division is synergistic effect of which of the following phytohormones?

Easy

A

Gibberellins and cytokinins
B

Auxins and cytokinins
C

Ethylene and gibberellins
D

Auxins and ethylene

Solution

Auxin and cytokinin both promotes cell division. Equal concentration of auxin and cytokinin promotes formation of a mass of undifferentiated cells called callus.

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