| 1. | The purine and pyrimidine may be complexed with a sugar to produce a nucleoside .
嘌呤和嘧啶可以同一个糖复合，产生一个核苷。 |
| 2. | The substitution of a purine for a pyrimidine, or vice versa is a transversion .
嘌呤为嘧啶取代或嘧啶为嘌呤所取代，叫做颠换。 |
| 3. | Tungstate competitively inhibits the utilization of molybdenum for the formation of xanthine dehydrogenases .
钨酸盐竞争性地抑制钼的利用以形成黄嘌呤脱氢酶。 |
| 4. | In other words, replacement of the number 8 carbon by nitrogen in the purine ring does not eliminate activity .
换句话说，嘌呤环上第8位碳被氮所取代并不丧失活性。 |
| 5. | A wide range of compounds related to adenine have been synthesized and tested in a number of bioassays .
人工合成了许多和腺嘌呤有关的化合物，并用几种生物鉴定法试验过。 |
| 6. | In dna, four different bases are found. two of these, adenine and guanine, are double-ring structures called purines .
在DNA中，有四种不同的基，其中的两个为腺嘌呤和鸟嘌呤，即称为嘌呤的双环结构。 |
| 7. | In dna, four different bases are found. two of these, adenine and guanine, are double-ring structures called purines .
在DNA中，有四种不同的碱基，其中的两个为腺嘌呤和鸟嘌呤，即称为嘌呤的双环结构。 |
| 8. | Structure of mesocarbon microbeads formed with ori
通过体外测定黄嘌呤氧化酶 |
| 9. | Flavine adenine dinucleotide disodium salt
黄素腺嘌呤二核苷酸二钠盐 |
| 10. | Flavin adenine dinucleotide see fad
黄素腺嘌呤二核苷酸：参见： fad |
