| |||
尿杂环; 四氮杂茆 | |||
嘌呤 (C₅H₄N₄) | |||
嘌吟 | |||
嘌吟 (C₅H₄N₄) | |||
四氮杂茚 | |||
嘌呤 |
purine: 40 phrases in 14 subjects |
Agriculture | 18 |
Animal husbandry | 1 |
Biochemistry | 1 |
Chemistry | 5 |
Dermatology | 1 |
Earth sciences | 1 |
General | 1 |
Genetics | 6 |
Life sciences | 1 |
Molecular genetics | 1 |
Nursing | 1 |
Otorhinolaryngology | 1 |
Polymers | 1 |
Sports | 1 |