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Q.
Bacillus thuringiensis (Bt) strains have been used for designing novel
J & K CETJ & K CET 2014Biotechnology and its Applications
Solution:
Bacillus thuringiensis strains have been used for designing bio insecticidal plants. A gene from this bacteria have insecticidal property which is transferred to cotton plants to produce Bt cotton which is resistant I to bollworm insect which is a major pest of cotton. Similarly insects affecting maize; cabbage, Sunflower etc., are also controlled by mutant strains of Bacillus thuringiensis bacteria.