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Question
Assertion :Alkaline pH of the insect get converts inactive Bt toxin into active form. Reason: Most of the Bt toxins are insect group specific.
Assertion :Alkaline pH of the insect get converts inactive Bt toxin into active form. Reason: Most of the Bt toxins are insect group specific.
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Solution
The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
The gene from the bacterium Bacillus thuringiensis known as the cry gene is inserted in the plants. The gene is responsible for the production of a crystalline protein. The protein acts as a toxin when ingested by the pests. The protein becomes activated after reaching the gut of pests. The alkaline pH in the gut of the intestine activates the protein and creates pores in the intestine and kills the pests. The gene provides protection to GMO against budworm, bollworm, beetle, borer, etc. This protein is insect group specific. There are different type of cry gene which results in the production of products that acts against group of insects. Thus, the correct answer is option B.
The gene from the bacterium Bacillus thuringiensis known as the cry gene is inserted in the plants. The gene is responsible for the production of a crystalline protein. The protein acts as a toxin when ingested by the pests. The protein becomes activated after reaching the gut of pests. The alkaline pH in the gut of the intestine activates the protein and creates pores in the intestine and kills the pests. The gene provides protection to GMO against budworm, bollworm, beetle, borer, etc. This protein is insect group specific. There are different type of cry gene which results in the production of products that acts against group of insects.
Thus, the correct answer is option B.
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