1.

The Bt toxin is not human beings becauseA. the pro Bt toxin activation requires temperature above human body temperatureB. the Bt toxin recognises only insect-specific targetsC. the pro Bt toxin activation requires pH lower than that present in human stomachD. conversion of pro Bt toxin to Bt toxin takes place in highly alkaline conditions.

Answer» Correct Answer - D
Conversion of pro Bt toxin to Bt toxin placce in highly alkaline conditions which are not present in human stomach. Human stomach is acidic in nature


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