Q. In tissue culture, callus can be induced to form shoot or root by altering the ratio of :

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Q. In tissue culture, callus can be induced to form shoot or root by altering the ratio of :

Q. In tissue culture, callus can be induced to form shoot or root by altering the ratio of :

(a)Auxin to cytokinin

(b) Cytokinin to ethylene

(c) Auxin to gibberellin

(d) Gibberellin to cytokinin

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