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In Bt cotton, the Bt toxin present in plant tissue as pro-toxin is converted into active toxin due to
A
Alkaline pH of the insect gut
B
Acidic pH of the insect gut
C
Action of gut microorganisms
D
Presence of conversion factors in insect gut
Detailed Solution
Bacillus thuringiensis forms Cry protein crystals in an inactive protoxin form.
The alkaline pH of the insect gut solubilises the crystals and converts the protoxin into the active toxin.
The alkaline pH of the insect gut solubilises the crystals and converts the protoxin into the active toxin.