Q.

Bt-toxin is insecticidal because

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a

activated toxin binds to the surface of midgut epithelial cells and creates pores that causes swelling and lysis and eventually cause death of the insect.

b

it decreases the growth of the nervous system of the insect.

c

it makes the insects unable to fly.

d

it kills insects by affecting its blood flow.

answer is A.

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Detailed Solution

Bt toxin is insecticidal because activated toxin binds to the surface of midgut epithelial cells and create pores that cause cell swelling and lysis and eventually cause death of the insect.
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