Question : A protoxin is(A) A primitive toxin(B) A denatured toxin(C) – InterviewSolution

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1.	Question : A protoxin is(A) A primitive toxin(B) A denatured toxin(C) Toxin produced by protozoa(D) Inactive toxin
Answer» A primitive toxin. A denatured toxin Toxin produced by protozoa Inactive toxin Solution :BT toxin is a protein. This toxin does not kill the Bacillus because the Bt toxin protein is inactive protein but once an insect INGESTS the inactive toxin, it is CONVERTED into an active FORM of toxin due to the ALKALINE pH of the gut which solubilise the crystals.

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