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Mode of action of Bt toxin is

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An Intiative by Sri Chaitanya

acts on nervous system of insect

creates pores and swelling of midgut of insect

make holes to cotton bolls

cause asphyxiation.

answer is B.

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Detailed Solution

The protoxin is activated in alkaline medium of midgut and make midgut porous and swelling eventually cause death of the insect.

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