Given below are two statements. Statement I : Bt toxins are insect group specific and coded by a gene cry IAc. Statement…
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Given below are two statements. Statement I : Bt toxins are insect group specific and coded by a gene cry IAc. Statement II : Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic pH of the insect gut. In the light of the above statements, choose the most appropriate answer from the options given below. [NEET 2024]
✓ Correct answer: d) Statement I is true but Statement II is false.
ExplanationStatement I is true because Bt toxins are insect group-specific and coded by the cry gene, such as cryIAc.Statement II is false because the inactive protoxin is converted to an active toxin due to the alkaline pH (not acidic) of the insect gut.
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