alleryInside the bacterium, the Bt toxin exists as an:
AInactive protamine
BInactive protoxin
CInactive protease
DInactive proteins
Answer & Solution
Correct answer: B. Inactive protoxin
1. This is why the toxin does not kill the Bacillus itself.
2. The Bt toxin protein exists as inactive protoxins.
3. It becomes active only inside the insect.
_Source: syllabus Biology, Ch 12 'Biotechnology and its Applications'_
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