Which of the following genetically engineered organisms was used by Eli Lilly to prepare human insulin?

Question

Which of the following genetically engineered organisms was used by Eli Lilly to prepare human insulin?

1. A. Bacterium (Correct answer)
2. B. Yeast
3. C. Virus
4. D. Phage

Correct Answer

Option A — Bacterium

Detailed Solution & Explanation

The correct answer is Bacterium.

Key Points

• In 1983 Eli Lilly prepared the two DNA sequences for the A and B chains of human insulin and introduced them into plasmids of *E. coli* (a bacterium) to produce the insulin chains.