查询词典 DNA

The result showed that high quality genomic DNA could be got from both fresh and frozen tissues except scale by common method. Tissue fixed with 70% alcohol and 10% formaldehyde could also extract high quality genomic DNA after effective pretreatment. Noteworthy high quality DNA could be got from scale with fresh and some other fixation methods.

结果表明，除鳞片外，新鲜组织、-20℃冰冻组织以常规方法可提取出较高质量的DNA；保存于70%酒精或10%甲醛溶液中的组织，经预处理，亦可得高质量DNA；新鲜、冰冻、70%酒精或短时间10%甲醛固定的鳞片经适当预处理也可提取出较高质量的DNA。

Results showed a high-purity and a good-integrity DNA can be obtained from the preserved fresh leaves of Camellia azalea, using the methods of modified CTAB and SDS subarea. The DNA extracting quality from the leaves preserved with silica gel by the methods of modified CTAB and SDS subarea is high, which is the same as from the leaves preserved at the -200C and liquid nitrogen, So these preserving methods are suitable for the fresh leaves of Camellia azalea, including for it from distant place.

结果表明，改进的CTAB和SDS区室法都适合杜鹃红山茶基因组DNA的提取，都能提取到完整性较好、纯度较高的基因组DNA，且在采用的-200C、液氮、硅胶脱水干燥3种方法保存样品中，硅胶脱水干燥法保存的样品与其它几种方法保存的样品一样，提取获得了高质量DNA，为远距离采样提取杜鹃红山茶DNA提供了一种较好的鲜叶保存方法。

Nucleic acid former cross can detect according to its content and cent is a cell inside former inside a cross and constituent section former what its use a cross; foundation bougie and place should detect of nucleic acid differ to be able to be divided again for cross of DNA-DNA, RNA-DNA, RNA-RNA.

核酸原位杂交可根据其检测物而分为细胞内原位杂交和组织切片内原位杂交；根据其所用探针及所要检测核酸的不同又可分为DNA-DNA、RNA-DNA、RNA-RNA杂交。

In this thesis, we gives a novel graphical representation of DNA sequences by taking four special vectors in 2-D Cartesian coordinate system to represent the four nucleic acid bases in DNA sequences, so that a DNA sequence is denoted on a plane by a directed walk.

由于在DNA计算中，信息总是通过特定长度的DNA序列来表示的，因此，选择高质量的方式来表示DNA序列就成为一个重要的问题。

DNA were abstracted by means of phenol chloroform, amplification and cataphoresis test of polymerase chain reaction of target DNA,primer sequence of gene segment amplification of 5-hydroxytryptamine (5-HT) 2A receptor gene T102C: 5'-TCT GCT ACA AGT TCT GGC TT-3', 5 '-CTG CAG CTT TTT CTC TAG GG-3'; Reaction system of 50 μL, DNA 0.5 μg,Primer 50 pmol,TagDNA enzyme 2U were added with dNTP to the final concentration of 200 μmol/L.

应用常规苯酚氯仿法抽提DNA，目的DNA的聚合酶链反应扩增及电泳检测，5-羟色胺2A受体基因T102C基因片断扩增的引物序列：5'-TCT GCT ACA AGT TCT GGC TT-3'。5'-CTG CAG CTY TTT CTC TAGGG-3'；采用50 μL反应体系，DNA 0.5 μg，引物50 pmol，TagDNA酶2U加dNTP至终浓度200μmol/L。

Supercoils Contortions in DNA that are important for DNA packaging and DNA–RNA synthesis.

超螺旋 对DNA包装和DNA–RNA合成起重要作用的DNA弯曲。

The new method combined the use of two DNA probes whose sequences comprises the whole complementary strand to the target DNA, in which one probe was labeled with an EDTA-〓 complex on the 5'-terminus and the other, labeled with a bidentate β-diketone on the 3'-terminus.

该法测定目标DNA的最低检测下限为6 pM，比现有其它均相DNA杂交分析法低2-3个数量级。该法具有简单、快速和高灵敏度等优点，通过使用各种的标记DNA探针，预计该法可广泛应用于各种实际DNA样品的分析。

In order to develop new DNA probes,we have synthesized two kinds of probes bipyrene ratiometric fluorescence probes and long wavelength Ruthenium polydiimine complex,the following work have been carried out:Fluorescent DNA probes with 1,6-hexanediyl as the linker between two pyrenes, phenylpyrenes or phenylethynyl pyrene fluorophores were synthesized(Py-1,Py-2 and Py-3) and their interactions with DNA were studied by UV-Vis absorption spectra,fluorescence spectra and viscosity measurements.

在前人的基础上，为了更好的识别DNA，本论文设计合成了两类DNA探针——双芘类比率型DNA荧光探针和长波长钌的配合物，具体如下：以己二胺为柔性链，以芘及其衍生物为发色团合成了探针Pyl-3，并通过荧光光谱，荧光紫外吸收光谱和黏度测试研究了探针与DNA的结合方式。

The interaction between epirubicin hydrochloride and DNA such as calf thymus DNA, salmon DNA, herring sperm DNA was studied using resonance Rayleigh scattering method.

用共振瑞利散射光谱研究了盐酸表柔比星与小牛胸腺DNA、鲑鱼DNA、鲱鱼精DNA和酵母RNA等核酸之间的相互作用。

DNA molecular weight standards are a mixture of a grou Pof DNA molecules with known sizes to reference the molecular weight of unknown DNA samples in nucleic acid electrophoresis and hel Pthe experimentalists to judge the property of the DNA samples.

DNA分子量标准是一组分子量大小已知的DNA片段混合物，用于指示核酸电泳中未知样品的分子量大小，从而帮助实验人员判断DNA样品的性质。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。