A) auxin
B) cylokinin
C) gibberellin
D) ethylene
Correct Answer: A
Solution :
Tissue culture is the technique of maintaining and growing cells, tissue etc., and their differentiation on artificial medium under aseptic condition. Callus is irregular, unorganized and undifferentiated mass of actively dividing cells. Differentiation of callus is under control of two hormones auxin and cytokinin.Development of | Condition |
Root | \[\frac{\text{Auxin}}{\text{Cytokinin}}\text{=High}\] |
Shoot | \[\frac{\text{Auxin}}{\text{Cytokinin}}\text{=Low}\] |
Both root and shoot | \[\frac{\text{Auxin}}{\text{Cytokinin}}\text{=Intermediate}\] |
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