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By modern biotechnology, the hormone insulin used to treat diabetes is now produced with the help of:
AThe pancreas glands taken from horses
BBacteria carrying the human insulin gene
CCrushed mango fruit pulp and juice
DLiquid nitrogen storage vials
Answer & Solution
Correct answer: B. Bacteria carrying the human insulin gene
1. Earlier insulin was collected from the pancreas of horses, which was the old method.
2. Today the human insulin gene is inserted into bacteria, which then produce insulin.
3. The horse pancreas option is outdated, while mango pulp and nitrogen vials are unrelated to insulin synthesis.
4. The horse pancreas distractor traps students who confuse the older source with the current biotechnological one.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 8 "Cell Biology and Biotechnology", p.102_
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