GUJCET 2014 Biology Solved Paper

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Question : 20 of 40

Marks: +1, -0

Choose the correct option for the toxic protein produced by B. Thuringiensis :

it acts in acidic medium and binds to epithelial cells of foregut.
it acts in neutral medium and binds to epithelial cells of hindgut.
it acts in alkaline medium and binds to epithelial cells of foregut.
it acts in alkaline medium and binds to epithelial cells of midgut.

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