You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots ?

Auxin and abscisic acid

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Gibberellin and abscisic acid

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IAA and gibberellin

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Auxin and cytokinin

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Solution

The correct option is D Auxin and cytokinin
Auxin and cytokinin ratio regulates the growth of root & shoot as low concentration of Auxin and cytokinin promotes shoot growth while higher ratio promotes root growth

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