Home Biology Biotechnology and Its Application All Topic Question For Revision Test Actually, the Bt toxin protein exist as inac…
Biology Biotechnology and Its Application All Topic Question For Revision Test Single Correct MCQ
Published on: August 21, 2026

Actually, the Bt toxin protein exist as inactive protoxins but once an insect ingest the inactive toxin, it is converted into an active form of toxin due to the –

A
Acidic pH of the gut
B
Alkaline pH of the gut
C
Neutral pH of the gut
D
Either acidic or alkaline pH of the gut

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Text Solution

Verified by Experts
The correct answer is:
B

Bt toxin is produced as an inactive protoxin. When an insect ingests it, the alkaline pH of the insect gut activates the protoxin into an active toxin, which kills the insect.

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