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…
Q. The catalytic efficiency of two different enzymes can be compared by the : A. Formation of the product B. The pH optimum value C. The Km value D. Molecular…
Q. Out of the following which two methods yield genetically similar plants : (i) Stem cuttings (ii) Seed production (iii) Mutation (iv) Tissue culture : (a) (i) and (ii) (b)…
Q. Axenic culture is : (a) Culture of tissue (b) Culture of genes (c) Pure culture without contamination (d) Pure culture of microbe without any external nutrient