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Human insulin chains were first produced in E. coli in 1983 by:
APfizer Inc
BBayer AG
CNovartis
DEli Lilly
Answer & Solution
Correct answer: D. Eli Lilly
1. Two DNA sequences for chains A and B were made.
2. They were put into E. coli plasmids.
3. The company was Eli Lilly.
_Source: NCERT Class 12 Biology, Chapter 12, Biotechnology and its Applications._
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