Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The trigger for activation of toxin of Bacillus thuringiensis is:
Text Solution
Verified by ExpertsThe correct answer is:
C
Bt toxins are initially inactive protoxins but after ingestion by the insect these inactive toxin becomes active due to the alkaline pH of the gut which solubilise the crystals. Hence, high pH value is required to make Bt toxins active. Under high temperature and acidic 
toxins remain insoluble and inactive.
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