- A Penicillin extracted from Penicillium mold
- B Human insulin (from E. coli)
- C Aspirin synthesized chemically from salicylic acid
- D Vitamin C produced by microbial fermentation
Correct answer: B. Human insulin (from E. coli)
Explanation: Recombinant human insulin was the first major product of biotechnology (1982). The insulin gene was inserted into E. coli.
Concept context
Recombinant DNA, GMOs, PCR, CRISPR, and biotechnology applications. Growing importance in NEET.
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