Assertion :'Cry' poteins are named so because they crystal proteins Reason: 'Cry' proteins are solubilized in the acidic environment of insect's midgut and then release toxic core fragments after proteolytic action.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Cry protein are encoded by cry genes. These proteins are toxins, which are produced by Bacillus thuringiensis bacteria. This bacterium contains these proteins in their inactive from. When the inactive toxin protein is ingested by the insect, it gets activated by the alkaline pH of the gut.
So the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.

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