MCQ
Starvation death decreases due to:
- AMedical discoveries
- BIndustrial revolution
- CAgriculture revolution
- DNone of these
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Statement $I$ : Bt toxins are insect group specific and coded by a gene cry $IAc$.
Statement $II$ : Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic $\mathrm{pH}$ of the insect gut.
In the light of the above statements, choose the correct answer from the options given below:
$a\quad \;b\quad\;c\quad\;d$