Home Biology Biotechnology and Its Application NCERT The trigger for activation of toxin Bacillus…
Biology Biotechnology and Its Application NCERT Single Correct MCQ
Published on: August 20, 2026

The trigger for activation of toxin Bacillus thuringiensis is

A
Acidic pH of stomach
B
High temperature
C
Alkaline pH of gut
D
Mechanical action in the insect gut

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Text Solution

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The correct answer is:
C

The Bt protoxin becomes active in the alkaline gut of insects, where it is converted into the active toxin that kills the insect.

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