CBSE Class 12-science Answered
Why do the toxic insecticidal proteins secreted
by Bacillus thuringiensis kill the
insect and not the bacteria itself?
Asked by Topperlearning User | 10 Jun, 2014, 04:38: PM
Expert Answer
The Bt toxin protein exists as inactive protoxin. Once an insect ingests the inactive toxin, it is converted into an active form of the toxin due to the alkaline pH of the gut which solubilises the crystals. Therefore, it does not kill the bacteria.
Answered by | 10 Jun, 2014, 06:38: PM
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