NEET 2009 Biology question

The bacterium Bacillus thuringiensis is widely used in contemporary biology as:

(1)InsecticideCorrect
(2)Agent for production of dairy products
(3)Source of industrial enzyme
(4)Indicator of water pollution

Answer: (1)

Solution

Bacillus thuringiensis produces crystalline Bt toxin (Cry proteins) lethal to many insect larvae. It is used as a bio-insecticide (spores sprayed on crops) and its genes are used in Bt cotton/Bt corn. Hence option

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Question ID VK-090279