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A protoxin is:
a. A primitive toxin
b. A denatured toxin
c. The toxin produced by protozoa
d. Inactive toxin
Answers (1)
The answer is the option (d) Inactive toxin
Explanation: For example, BT toxin protein exists as inactive protoxin but becomes active due to the pH of gut once it is inside the gut of the insect.
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