Reason : In between $A$ and $T$ there are three $H-$ bond, whereas in between $G$ and $C$ there are two $H-$ bonds.
| List $I$ | List $II$ |
| $A$. Frederick Griffith | $I$. Genetic code |
| $B$. Francois Jacob and Jacque Monod | $II$. Semi-conservative mode of DNA replication |
| $C$. Har Gobind Khorana | $III$. Transformation |
| $D$. Meselson and Stahl | $IV$. Lac operon |
Choose the correct answer from the options given below:
Reason : They are not recognised by $tRNA$.