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pyrimidine tetrone 嘧啶四酮
Uracil -- a pyrimidine found in RNA that base-pares with adenine. 尿嘧啶--核糖核酸中的一种嘧啶，与腺嘌呤形成碱基对。
Uracil －－ a pyrimidine found in RNA that base-pares with adenine. 尿嘧啶－－核糖核酸中的一种嘧啶，与腺嘌呤形成碱基对。
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。
A pyrimidine base, C5H6N2O2, that is an essential constituent of DNA. 胸腺碱一种属于脱氧核糖核酸重要成分的嘧啶碱
A pyrimidine base, C4H5N3O, that is an essential constituent of RNA and DNA. 胞核嘧啶一种嘧啶碱基，C4H5N3O，是核糖核酸和脱氧核糖核酸的基本成分
Base pairing The bonding relationship between purine and pyrimidine bases in the nucleotides of DNA and RNA. 碱基配对：在DNA和RNA的核苷酸中，嘌呤和嘧啶之间相匹配的关系。
Clevudine is a pyrimidine analogue with potent and sustained antiviral activity against HBV. 克来夫定为嘧啶类似物，对HBV具有持续有效的抗病毒活性。
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。
The relative merits between "degradable" and "non-degradable" radiolabeled pyrimidine analogues have been compared in this paper. 本文比较可分解及不可分解放射性标帜嘧啶核苷酸之个别优点。
A nucleotide consisting of one molecule each of a phosphoric acid,a sugar,and either a purine or a pyrimidine base. 单核苷酸磷酸、糖、嘌呤或嘧啶碱基中的一种，它组成的一个分子的苷酸
On the other hand, cyclobutane pyrimidine dimmer(CPD) just has an effect of cell cycle arrest. 而CPD光产物(cyclobutane pyrimidine dimmer，CPD)仅仅造成细胞周期暂时或短期的停滞现象。
A nucleotide consisting of one molecule each of a phosphoric acid, a sugar, and either a purine or a pyrimidine base. 单核苷酸磷酸、糖、嘌呤或嘧啶碱基中的一种，它组成的一个分子的苷酸
Lamivudine is a typical antivius agent of pyrimidine nucleoside,mainly used for the treatment of hepatitis B. 拉米夫定是一种嘧啶核苷类抗病毒药物,主要用于慢性乙型肝炎的治疗。
Breeding a high pyrimidine producting srain is the precondition for producting cytidine and uridine by fermentation. 选育嘧啶核苷高产菌是实现发酵法生产胞苷、尿苷的前提。
The main form of the DNA damage induced by UVB radiation was the formation of pyrimidine dimer. UVB对植物DNA的损伤主要是形成嘧啶二聚体。
Cleudine is a pyrimidine analogue with potent and sustained antiiral actiity against HB. 克来夫定为嘧啶类似物，对HB具有持续有效的抗病毒活性。
Lamivudine is a typical antivius agent of pyrimidine nucleoside, mainly used for the treatment of hepatitis B. 摘要拉米夫定是一种嘧啶核苷类抗病毒药物，主要用于慢性乙型肝炎的治疗。
Uracil has a PYRIMIDINE ring structure, and is derived from sugars and amino acids. 尿嘧啶具有嘧啶环结构，可由糖或氨基酸产生。
In this paper,the applications,the mensuration and the production ways of pyrimidine were presented. 嘧啶核苷包括尿嘧啶核苷和胞嘧啶核苷,其在食品工业和医药行业上应用广泛。