- bazo nito + đường 5 cacbon + axit photphoric → nucleotit → axit nucleic
- bazo nito + đường 5 cacbon + axit amin → axit photphoric → axit nucleic
- bazo nito + đường 5 cacbon + axit amin → axit photphoric → axit nucleic
- Glixerol + axit béo → nucleotit → axit nucleic