| 1. | The sugar in all the nucleotides of dna is deoxyribose .
所有DNA的核苷酸中的糖均是脱氧核糖。 |
| 2. | Ribose and deoxyribose are constituents of the nucleic acids rna and dna .
核糖与脱氧核糖分别是核糖核酸与脱氧核酸（DNA）的结构成分。 |
| 3. | Two major kinds of nucleic acids are found in living things: deoxyribonucleic acid or dna and ribonucleic acid or rna .
生物中存在着两大类核酸：脱氧核糖酸和核糖核酸。 |
| 4. | The sugar in all the nucleotides of dna is deoxyribose
所有dna的核苷酸中的糖均是脱氧核糖。 |
| 5. | Ribose and deoxyribose are constituents of the nucleic acids rna and dna
核糖与脱氧核糖分别是核糖核酸与脱氧核酸（ dna ）的结构成分。 |
| 6. | Deoxyribose a pentose ( five - carbon ) sugar that is a component of the nucleotides that make up dna
脱氧核糖：组成dna核苷的一种戊糖（五个碳） 。 |
| 7. | Deoxy sugar a sugar in which oxygen has been lost by replacement of a hydroxyl group ( oh ) with hydrogen ( h ) . the most important example is deoxyribose
脱氧糖：羟基被氢原子置换导致失去氧的一类单糖。最重要的脱氧糖就是脱氧核糖。 |
| 8. | Rna was once seen as the working arm of dna , which carries the genetic code , but studies show it can " silence " genes and even help cut them up
曾经认为rna是脱氧核糖酸的工作臂，其携带遗传密码，但现在研究表明，它能使基因“沉默” ，甚至帮助去掉某些基因。 |
