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Biology
Biotechnology and its Applications
CBSE
Class 12
Biology
Class 12 - Biology
Biotechnology and its Applications
MCQ
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1.
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.
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