Biotechnology and Its Applications Question 25

25. Bacillus thuringiensis $(B t)$ strains have been used for designing novel :

[2005]

(a) Biofertilizers

(b) Bio-metallurgical techniques

(c) Bio-mineralization processes

(d) Bioinsecticidal plants

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Answer : d

Hints & Solutions

(d) Bt cotton, a transgenic crop variety has been introduced in India. The $B t$ cotton variety contains a foreign gene obtained from Bacillus thuringiensis. This bacterial gene protects cotton from the boll worm, a major pest of cotton.