| 单词 | 胞核嘧啶 |
| 释义 | 〔RNA〕A polymeric constituent of all living cells and many viruses, consisting of a long, usually single-stranded chain of alternating phosphate and ribose units with the bases adenine, guanine, cytosine, and uracil bonded to the ribose. The structure and base sequence of RNA are determinants of protein synthesis and the transmission of genetic information. Also called ribonucleic acid 核糖核酸：是所有活细胞和许多病毒的一种聚合组成要素，由一条长的、通常是单线的相互交替的磷酸盐和核糖单位组成，核糖上又附着有腺嘌呤，鸟嘌呤，胞核嘧啶及尿喀啶等基本成分。核糖核酸的结构及基本顺序是蛋白质的合成及遗传信息的决定因素 也作 ribonucleic acid〔cytosine〕A pyrimidine base, C4H 5N 3O, that is an essential constituent of RNA and DNA. 胞核嘧啶：一种嘧啶碱基，C4H 5N 3O，是核糖核酸和脱氧核糖核酸的基本成分 〔cytidine〕A white, crystalline nucleoside, C9H 13N 3O 5, composed of one molecule each of cytosine and ribose. 胞苷：一种白色的晶状核苷，C9H 13N 3O 5，由每个胞核嘧啶和核醣的一个分子构成 |
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