胸腺嘧啶

In order to further explore the relationship between this effect and the synthesis of RNA and DNA in the neurons, an autoradiography of 3~H-uridine and 3~H-thymidine was used.

本文应用3~H-尿嘧啶核苷和3~H-胸腺嘧啶核苷放射自显影术，进一步研究该作用与神经元合成RNA和DNA的关系。

Methylcytosine undergoes spontaneous deamination, at a rate much higher than cytosine, to generate thymine.

甲基化胞嘧啶在生理条件下极易发生自发脱氨，生成胸腺嘧啶，产生G/T错配。

Objective To observe cataract incidence、characteristics、and conjunction with trinulceotide repeat,n,in the 3,-untranslated region of the myotonin protein kinase gene in twenty-five patients,consistent with typically or equivocally clinical and molecular diagnosis criteria of DM.

摘 要：目的观察强直性肌营养不良临床典型或可疑的患者并符合分子诊断标准的25例患者中白内障发病率、特点及与强直性肌营养不良蛋白激酶基因中CTG三核苷酸(C-胞嘧啶、T-胸腺嘧啶、G-乌嘌呤)重复次数的关系。

In accordance with the fact that 5-brom-odeoxyuridinecan incorporate period-ically into the nuclear DNA to substitutethe thymidine in DNA,we devoloped a newbasic fuchsin staining method in which weused BrdU as a chromosomal marker in in situnick translation of chromosomes.

根据5—溴脱氧尿嘧啶核苷可周期性替代DNA链中的胸腺嘧啶核苷而显示不同细胞周期染色体的特性，我们用BrdU作为染色体的标记，首次建立了一种硷性复红染色的染色体原位切口移位的新方法。

Purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA.

DNA和RNA中的嘌呤碱，与DNA中胸腺嘧啶和尿嘧啶成对。

It was also found that thymine and uracil had different sensitivities to N+ and Ar+.

研究还发现胸腺嘧啶和尿嘧啶对低能N+和低能Ar+的辐射敏感性不同。

During TRANSCRIPTION, the thymine of the DNA template is substituted by a uracil in the RNA copy.

转录过程中 DNA 模板链的胸腺嘧啶对应 RNA 复制链上的尿嘧啶。

If the genotype of pig was NN, there would be 2 bands appeared for that there was no mutagenesis from cytosine C to thymine T occurred.

如果猪的基因型为NN，由于未发生胞嘧啶C到胸腺嘧啶T的突变，可以看到2条带。

American biochemists found out, the main element of nucleic acid bases are gland fat methotrexate, the birds fat methotrexate, thymine, cytosine.

俄裔美国生物化学家列文发现核酸碱基的主要成份是腺膘呤、鸟膘呤、胸腺嘧啶、胞嘧啶。

To study the effects on the body of animals after incorporation of 3H-TdR and its mechanism, the laws of distribution A retention and absorbed dose in blood , thymus, spleen, femur, heart, lung,kidney, liver, brain , spermary , small intestine and muscle were detected by liquid scintillation counter after 3H-TdR was injected into the tail vein of mouse; the process of dynamic incorporation of in the lymphocytic cell nucleus of blood , thymus , spleen and the nucleus of femur was monitored; the absorbed dose in the cell nucleus was estimated; the influence to RNA"s synthesizing and cell"s survival was observed using the technology of CLSM; A segment of Egr-1 gene was cloned with reverse transcriptase- polymerase chained reaction, the influence to the expression of Egr-1 gene in the spleen cells was observed.

为了探讨有机结合氚内污染对生物机体的影响及其作用机理，本课题应用均相液体闪烁测量技术研究了氚标记胸腺嘧啶核苷(~3H-TdR)经尾静脉注入小鼠机体后，在血液、脑、胸腺、心脏、肺脏、肝脏、脾脏、肾脏、小肠、睾丸、肌肉和股骨共12种组织器官的生物动力学分布规律及其吸收剂量；应用纸片法液体闪烁测量技术研究了~3H-TdR内污染在外周血、胸腺和脾脏淋巴细胞及骨髓细胞的动态滞留规律，估算了细胞核的吸收剂量；应用共聚焦显微镜观察了~3H-TdR内污染对脾细胞核酸合成及其存活率的作用，应用反转录PCR技术研究了~3H-TdR内污染对脾细胞早期生长反应基因-1(Egr-1)转录表达的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。