查询词典 DNA

DNA is the carrier of genetic information and sequencing and comparison of DNA nucleotides are the thorough and ideal method for bryophyte molecular phylogenesis.

DNA是遗传信息的载体，直接对DNA核苷酸排列顺序的分析和比较是研究苔藓分子系统学的最彻底和最理想的方法。

MethodUsing FQ-PCR technique to detect treponema pallidum DNA in hard chancre,syphilitic bubo,the lesions of secondary syphilis (flat condyloma,macula,maculopapule,papule,node,mucous patches),the whole blood of patients with syphilis,and TP-DNA positive samples preserved in sterile tube at room temperature for 1～3 and a half years as well as some pollution goods.

使用FQ-PCR技术检测硬下疳、一期横痃、二期梅毒皮损、梅毒患者全血、室温保存1～3年半的梅毒螺旋体DNA阳性标本以及部分生活污染品中的梅毒螺旋体DNA含量。

The result shows that in total 75.6% species are under the "10 × rule", 80.5% species possess unique DNA barcode sequences by which they could be identified. On the other hand, 19.5% species (including 8 species of Buteo) are difficult to be distinguished by DNA barcoding.

结果显示，75.6%的猛禽符合10×规则，且80.5%的猛禽均具有独特的DNA条形码可作为物种鉴定的依据，另有19.5%的猛禽（鵟属8种猛禽）由于种间差异太小，DNA条形码对它们的识别鉴定存在一定局限。

After synthesis of the DNA polymerase and replication of DNA,the viral capsid and glycoproteins are synthesized.

在DNA多聚酶合成DNA复制后，病毒衣壳和糖蛋白合成。

To study and know well the rudimentary knowledge and the basic techniques of modern Microbiology are demanded for Graduate students. The experiments including the principle and operation of phase contrast microscope and fluorescence microscope; Microphotography , the technique of photographic enlargement;Applications of polymerase chain reaction ; Construction, transformation and detection of plasmid in E.coli ; Infectivity of virus and its molecular detection ; The technique of protoplast fusion in filamentary fungi ; Induction and purification of β-galactosidase from E.coli and assay the enzyme activity; Detection of GC content and DNA-DNA hybridization in bacteria ; Production , extraction and detection of poly--hyduoxy butyrate from bacteria.

以实验教学为主，要求研究生学习和掌握一些现代微生物学研究所需的基本技术，内容包括：相差显微镜、荧光显微镜的使用和显微摄影技术，PCR技术的应用，细菌质粒的构建、转化及检测技术，病毒的侵染性及其分子检测技术，丝状真菌原生质体融合技术，大肠杆菌β-半乳糖苷酶的分离及纯化及其动力学测定技术，细菌G+C mol%的测定及细菌DNA-DNA杂交技术和聚羟基丁酸产生菌的发酵、产物提取及检测技术等。

In view of their theoretical and practical significant importance in the investigation of sophisticated biological topics, and in the development of novel drugs and new biochemical tools, DNA intercalators and cleavers have received much current interest This dissertation focuses on synthesis of hetrocycles containing naphthalene moiety and on the mechanism of their interactions with DNA.

DNA嵌入、切断剂的研究，对探索生命科学中的复杂问题，发展新药、新型生化工具具有非常重要的理论和实际意义，成为当前多学科的研究热点。本文从我国国情出发，以国内资源丰富的萘类化合物为基点，设计、合成了一系列多杂环平面刚性分子，并对某些化合物与DNA相互作用的分子机理进行了研究。

In this research, swainsonine contents of three Oxytropis species were determined by the high performance liquid chromatography coupled to mass spectrometry. The population genetic diversity was also studied and the swainsonine related molecular markers were screened by ISSR. In vitro fungi cultures from the individual plant of O. glabra were performed and microbiological morphology of the colony and the conidiophore were investigated. The 5.8S rDNA/ITS sequences of fungi amplified from total DNA in both plants and fungal endophytes were studied. These sequences were analysed and compared, and they were also compared to the 5.8S rDNA/ITS sequence of fungal enduphyte Embellisia sp. L12 from the O.lambertii, O.sericea and A.mollisimus distributed in USA.

本研究采用高效液相色谱-质谱联用法测定了三种棘豆植物的苦马豆素含量；通过ISSR分子标记技术对三种棘豆种群遗传多样性及其苦马豆素相关标记进行了研究；将小花棘豆植物单株进行体外真菌培养，研究了菌落和分生孢子的微生物形态学特性，从植物总DNA和相同植株培养的真菌总DNA扩增真菌的5.8SrDNA/ITS区，进行了DNA序列分析与排序；联系单株小花棘豆的苦马豆素含量测定和内生真菌ITS序列分析结果，与从美国分布的二种棘豆(O.lambertii、O.sericea)和一种黄芪(A.mollisimus)中分离的内生真菌埃里砖格孢属Embellisia sp.L12株得到的结果进行了比较。

Specific primers was designed based on conserver sequence of the other animals,firstly,total DNA was extracted from blood of Mongolian sheep and the BMP15 DNA was amplified by PCR,The purified-PCR.product was cloned into PMD18-T vector.

根据其他物种BMP15基因的保守序列设计特异性引物，扩增蒙古羊的全长DNA序列。从蒙古羊的血液中提取总DNA，采用PCR技术扩增出蒙古羊BMP15DNA序列。

With the EU's Corpus Juris waiting in the wings and their determination like Blair to get everyone's DNA, you can be sure that any dissidents will be rounded up and accused of some crime and they will say that your DNA was found at the scene.

与欧盟的大全等候在机翼和他们的决心，像布莱尔得到大家的DNA ，您可以肯定的是，任何持不同政见者将四舍五入，并指责一些犯罪，他们会说，您的DNA被发现在现场。

This paper is made up of 6 chapters; chapter 1 summarizes the interaction of low molecular weight compounds with DNA; chapter 2 to 6 focus on the electrochemical studies of some organic dyes such as pyronine B, phenosafranine, brilliant cresyl blue, crystal violet, neutral red etc. and their interaction with DNA, respectively. Different electrochemical methods such as linear sweep voltammetry, cyclic voltammetry and UV-Vis spectrophotometric method are applied to the investigation.

论文由6章组成，第1章综述了小分子和DNA的相互作用；第2至6章分别筛选了吡啰红B、酚藏花红、灿烂甲酚蓝、结晶紫和中性红等小分子染料，以汞电极如静汞电极、滴汞电极作为工作电极，采用循环伏安法、线扫极谱法等电化学手段，结合紫外-可见分光光度法，研究了它们的电化学行为以及和DNA的相互作用。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。