The inactive form of Bt toxin is converted to | vedclass

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(A) The $Bt$ toxin produced by the bacterium $Bacillus$ $thuringiensis$ exists as an inactive protoxin in the bacteria.When an insect ingests this tox

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due to alkaline pH

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(A) The $Bt$ toxin produced by the bacterium $Bacillus$ $thuringiensis$ exists as an inactive protoxin in the bacteria.When an insect ingests this toxin, the alkaline $pH$ of the insect's gut solubilizes the crystals, converting the inactive protoxin into its active form.This active toxin then binds to the surface of midgut epithelial cells and creates pores that cause cell swelling and lysis, eventually leading to the death of the insect.

The inactive form of $Bt$ toxin is converted to the active form in the insect gut $ . . . . . . $.

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