Out of the statements for ‘Bt toxin’ which one is not corre…

Biology Biotechnology and Its Application All Topic Question For Revision Test Single Correct MCQ

Published on: August 21, 2026

Out of the statements for ‘Bt toxin’ which one is not correct -

Bt toxin protein exist as active protoxins but it converted into an active form due to the alkaline pH of the gut of insects

Bt toxins are insect group non – specific

Bt toxin is coded by a gene named cry

Bt toxin genes were isolated from Bacillus thuringinensis

Text Solution

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The correct answer is:

Correct – Bt protoxin becomes active in the alkaline gut of insects.

Incorrect – Bt toxins are insect group specific. Different Cry proteins target different insect groups.

Correct – Bt toxin is encoded by cry genes.

Correct – Bt toxin genes are isolated from Bacillus thuringiensis.

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