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NEET 2025, Biology Q75: Recombinant DNA Technology

NEET2025Biology
Q.

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

  1. A

    Phage

  2. B

    Bacterium

  3. C

    Yeast

  4. D

    Virus

Solution

In 1983, the American company Eli Lilly synthesised two DNA sequences corresponding to the A and B chains of human insulin and introduced them into plasmids of E. coli, a gram-negative bacterium, to produce insulin chains. The chains were then assembled into functional human insulin.

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