Question
Which of the following genetically engineered organisms was used by Eli Lilly to prepare human insulin?
NEET
Zoology
Biotechnology and Its Applications
2025
NEET 2025
NEET Zoology Question (2025) — Solution
Options
- A. Bacterium
- B. Yeast
- C. Virus
- D. Phage
Answer
A. Bacterium
Step-by-step solution
The correct answer is bacterium. In 1983, Eli Lilly, an American company, prepared two DNA sequences corresponding to ' A ' and ' B ' chains of human insulin and introduced them in plasmids of E.coli (a gram negative bacterium) to produce insulin chains.
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