| consist of fused pyrimi… | 0.31 |
| produce clear, brightsk… | 0.25 |
| adenine base-pair | 0.25 |
| oxidize other purine-de… | 0.22 |
| two tautomeric forms | 0.25 |
| group | 0.25 |
| insoluble | 0.35 |
| purine | 0.68 |
| nitrogenous bases | 0.25 |
| small fish scales | 0.31 |
| skin | 0.31 |
| present in both dna | 0.25 |
| present in rna | 0.25 |