In Bt cotton,Bt toxin is present as protoxin, | vedclass

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(C) $Bt$ toxin is produced by the bacterium $Bacillus$ $thuringiensis$ as an inactive protoxin. When an insect ingests the $Bt$ cotton,the inactive pr

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Due to alkaline pH of insect midgut

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(C) $Bt$ toxin is produced by the bacterium $Bacillus$ $thuringiensis$ as an inactive protoxin. When an insect ingests the $Bt$ cotton,the inactive protoxin enters the insect's midgut. The alkaline pH of the insect's midgut solubilizes the crystals and converts the inactive protoxin into its active form,which then binds to the surface of midgut epithelial cells and creates pores,causing cell swelling and lysis,eventually leading to the death of the insect.

In $Bt$ cotton,$Bt$ toxin is present as protoxin,it gets activated because of . . . . . . .

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