RNA molecules form double stranded helices, just as do DNA molecules, by Watson Crick pairing of nucleotides on the two complementary strands of the helix.
RNA分子能像DNA分子那样形成双链螺旋，通过沃森·克里克配对，两个螺旋的核苷链互补。
DNA is a double stranded molecule shaped like a spiral staircase.
DNA是一种像螺旋阶梯样形状的双链分子。
The lengths of the double stranded cDNA fragments were about 500 base pairs.
其双链链长，经凝胶电泳分析，约为500碱基对。
HBV belongs to Hepadnaviridae with a partially double stranded and circular DNA genome.
HBV属于嗜肝dna病毒，具有部分双链环状的DNA基因组。
Using cellulose (CF-11 ) chromatography a double stranded RNA was purified from the extract of R. sativus-root, termed E.
本实验用CF-11纤维素柱层析，从白萝卜提取物中分离纯化到一种双链RNA，简称E。
Foreign gene (double stranded DNA) is maybe integrated in different DNA strand of the same chromosome as an exon. The first generation of transgenic fish is Mosaic.
外源基因(双链dna)作为外显子可能整合在一条染色体上的不同dna链上，转基因鱼的第一代为嵌合体。
Please see our detailed protocol for information regarding the labeling procedure and denaturation of double stranded DNA for various immunodetection applications (1-4).
请查询我们的实验步骤获得各种免疫检测应用中标记和双链DNA变性的实验过程的具体信息(1 - 4)。
Please see our detailed protocol for information regarding the labeling procedure as well as denaturation of double stranded DNA for various immunodetection applications (1-4).
请参阅我们有关标记程序的详细步骤，以及应用于各种免疫检测的双链DNA变性程序（1-4）。
In every experiment, injection of double-stranded RNA carrying a genetic code led to silencing of the gene containing that particular code.
在每一次实验中，注射携带了一种遗传密码的双链rna都导致了包含这种密码的基因的关闭。
This paper reports a new method based on double-stranded RNA (ds RNA) analysis for detection of apple latent viruses.
本文报导一种以分析病毒双链RNA为依据，检测苹果潜隐性病毒的新方法。
Bacteriophage lysins are lytic agents used by double-stranded DNA(dsDNA) phages to coordinate bacterial cell wall lysis.
噬菌体裂解酶是双链DNA噬菌体所特有的细胞壁水解酶。
These are hula-hoop-shaped double-stranded units of DNA that can be moved easily from one cell to another.
它们是形似呼拉圈的双股dna单位，可以被轻易地从一个细胞转移到另一个细胞。
This aversity to double-stranded RNA means short hairpins can be used to knock out the messengers, thus nullifying the signal from the underlying gene.
哺乳动物细胞对双链RNA不识别意味着可用短发卡RNA来阻断信使RNA,从而使相应基因的信号无法传递。
During this process, the viruses create long strings of double-stranded RNA (dsRNA), which is not found in human or other animal cells.
在这一过程中，病毒创建长链的双链rna，这一结构在人体和其他动物体细胞中没有发现。
Objective Recently, a naturally occurring gene silencing mechanism triggered by double-stranded RNA (dsRNA), RNA interference (RNAi), has been described in a number of species including Drosophila.
目的近年来，双链rna介导的基因沉默(RNA干扰)已在许多动植物中发现，并成为研究基因功能的强有力的工具。
The results show that the fluorescence spectra of four TPM dyes can be used to discriminate intramolecular G-quadruplexes from intermolecular G-quadruplexes, single-and double-stranded DNAs.
结果表明四种TPM染料的荧光光谱可用于区分分子内G-四链体和分子间G-四链体、单链和双链DNA。
The hybridization event was recognized by the different FRET efficiencies due to different interaction abilities of single-stranded and double-stranded DNA with the polymer.
由于单股和双股DNA与聚合体之间具有不同的相互作用能力，因而可通过不同荧光能量共振转移效率识别杂交事件。
Could it be that such a double-stranded RNA molecule silences the gene carrying the same code as this particular RNA?
会不会是这个双链rna分子关闭了携带相关遗传密码的基因？
The invention relates to a preparation method for a double-stranded DNA antigen and a kit for testing an anti-double-stranded-DNA antibody of human serum.
本发明涉及一种双链DNA抗原的制备方法和检测人血清抗双链DNA抗体的试剂盒。
Mammalian cells make only the single-stranded variety. If a cell’s defence mechanisms detect double-stranded RNA they destroy it, to protect against infection.
哺乳动物细胞只能识别单链RNA,如果细胞的防御机制发现了双链RNA就会破坏它以保护机体不受病毒的感染。
Each codon is a specific sequence of three nucleotides (three nucleotide pairs in double-stranded DNA), and each codon codes for a single amino acid unit in a protein.
每个密码子是特异的三核苷酸序列（双链DNA状况下为三个三核苷酸对），每个密码子编码蛋白质的一个氨基酸单位。
Each codon is a specific sequence of three nucleotides (three nucleotide pairs in double-stranded DNA), and each codon codes for a single amino acid unit in a protein.
每个密码子是特异的三核苷酸序列（双链DNA状况下为三个三核苷酸对），每个密码子编码蛋白质的一个氨基酸单位。
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