| List-1 (Scientists) | List-II (Contribution) | ||
| A | Maxam-Gilbert | I | DNA polymerase isolation |
| B | Stanley Cohen | II | DNA sequencing |
| C | Kornberg | III | Genetic code |
| D | Har Gobind Khorana | IV | DNA cloning |
Choose the correct answer from the options given below
| List I | List II | ||
| A | Frederick Griffith | I | Genetic code |
| B | Francois Jacob & Jacque | II | Semi-conservative mode of DNA replication |
| C | Har Gobind Khoran | III | Transformation |
| D | Meselson & Stahl | IV | Lac operon |



