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Q.

Explant develops into callus followed by plantlet during tissue culture. Which combination of hormones can be applied to produce a complete plantlet from callus during in vitro culture?

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a

Auxins and ethylene

b

Gibberellins and cytokinins

c

Gibberellins and abscisic acid

d

Auxins and cytokinins

answer is D.

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Detailed Solution

Auxins and cytokinins are responsible for organogenesis. Auxin promotes root formation and cytokinin promotes shoot formation in the callus.

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