NEET Biology question

Which of the following correctly describes the action of Bacillus thuringiensis-based bioinsecticides on target insects?

(A)The Bt toxin, once activated in the insect gut, lyses gut epithelial cells, eventually killing the insectCorrect
(B)The Bt toxin directly kills the insect by neural paralysis upon contact with skin
(C)The Bt toxin prevents insect reproduction without killing it
(D)The Bt toxin has no effect on insect physiology

Answer: (A)

Solution

As per NCERT, Bt toxin, once ingested and activated in the alkaline insect gut, binds to and

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Question ID VK-124731