Question
Biology Question on Applications of Biotechnology
Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves because -
A
Bacteria are resistant to the toxin
B
Toxin is immature
C
Toxin is inactive
D
Bacteria encloses toxin in a special sac
Answer
Toxin is inactive
Explanation
Solution
In bacteria, the toxin is present in an inactive form, called prototoxin, which gets converted into active form when it enters the body of an insect.
Therefore, the correct option is (C): Toxin is inactive