- Bt gene produces crystalline proteins (Cry proteins) that are toxic to specific insect larvae when ingested. - Bacillus thuringiensis is a soil bacterium widely used as a biological insecticide.
Statement-I: Insect resistant transgenic cotton has been produced by inserting Bt gene. Statement-II: The Bt gene is derived from a bacterium.
Asked in UPPCS Prelims 1999 · Topic: Main Plant Diseases (Role of Breeding and Biotechnology in Disease Resistance)
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Answer: A. Both A and R are true, and R is the correct explanation of A
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