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Bacillus thuringiensis forms protein cry...

Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein:

A

does not kill carrier bacterium which is itself resistance to this toxin

B

binds with epithelial cells of midgut of the insect pest ultimately killing it

C

is coded by several genes including the gene cry

D

is activated by acid pH of the foregut of the insect pest

Text Solution

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The correct Answer is:
B
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Bacillus thuringiensis forms the protein crystals, which contains a toxic insecticidal protein. This proein I. is activated by alkaline pH of the gut of the insect pest. II.binds with the epithelial cells of the midgut of the insect pest ultimately killing it. III.does not kill the carrier bacterium which is itself resistance to this toxin. Which of the statement given above are correct ?

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