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Before recombinant insulin, insulin was extracted from the pancreas of:
ASheep and goats
BCattle and pigs
CFish and frogs
DChickens and ducks
Answer & Solution
Correct answer: B. Cattle and pigs
1. Animal insulin caused allergies in some patients.
2. It came from slaughtered animals.
3. Those were cattle and pigs.
_Source: NCERT Class 12 Biology, Chapter 12, Biotechnology and its Applications._
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