First slide

Plant Growth Regulators

Question

The internodal segments of tobacco stems the callus proliferated only if it contains ___ (i) _ in addition to _ (ii) ___

Easy

A

(i) Yeast extract; (ii) coconut milk
B

(i) Cocount milk; (ii) Auxin
C

(i) Yeast extract; (ii) Cytokinin
D

(i) Coconut milk; (ii) Gibberellic acid

Solution

Yeast extract and coconut milk contain cytokinins. Besides cytokinins, auxins are also required in almost equal quantities to form callus from tobacco tissue.

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