Question
In case of Bacillus thuringiensis, Bacillus itself is not killed by the toxic protein crystals produced by it because
Answer: Option C
:
C
The Bt toxin protein exists as an inactive protoxin in the Bacillus but once an insect ingests the inactive toxin, it is converted into an active form of toxin due to the alkaline pH of the gut which solubilises the crystals. The activated protein then kills the insect by inducing bleeding and auto-digestion.
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:
C
The Bt toxin protein exists as an inactive protoxin in the Bacillus but once an insect ingests the inactive toxin, it is converted into an active form of toxin due to the alkaline pH of the gut which solubilises the crystals. The activated protein then kills the insect by inducing bleeding and auto-digestion.
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