| List I | List II |
|---|---|
| (A) D’Herelle and Twort | (I) Bacterial transformation |
| (B) Beadle and Tatum | (II) Penicillin |
| (C) Fleming | (III) One-gene-one-enzyme hypothesis |
| (D) Griffith | (IV) Bacterial viruses |
- D’Herelle and Twort: Independently identified bacteriophages, bacterial viruses utilized in phage therapy.
- Beadle and Tatum: Proposed the one-gene-one-enzyme hypothesis, establishing the genetic control of enzyme synthesis, a cornerstone of molecular biology.
- Fleming: Discovered penicillin, the inaugural antibiotic, fundamentally transforming bacterial infection treatment.
- Griffith: Demonstrated bacterial transformation, where genetic material transfer alters bacterial characteristics.