Scientists thought that most RNA in a cell was messenger RNA generated by protein-coding genes, RNA in ribosomes, or a sprinkling of other RNA elsewhere.
科学家们曾认为，细胞中的大多数RNA是由蛋白质编码基因产生的信使RNA，核糖体rna，或其它地方的少量rna。
A completely different approach is to use RNA interference, a relatively new technique for switching off individual genes by delivering short stretches of RNA.
另一种完全不同的方法是RNA干扰。它采用相对较新技术通过转录小rna分子来关闭各别基因。
Another nucleic acid, RNA, carries the information to a molecular machine called a ribosome, which reads the RNA and strings together amino acids to form the protein.
另一种被称之为rna的核酸负责将信息传递到名为核糖体的分子机器上，核糖体通过阅读RNA信息，并将氨基酸串联起来形成蛋白质。
Instead, the naked viral RNA may alter the function of the cells through a mechanism similar to RNA interference, in which the presence of certain RNA sequences can turn genes on and off.
相反，该病毒的裸rna可以通过一个类似rna干扰的机制，改变细胞功能，其中某些RNA序列可以打开和关闭基因。
But the RNA World hypothesis doesn't explain how RNA itself first arose.
但是，“RNA世界”假说无法解释RNA又是怎么产生的。
To understand RNAi and RNA in general, researchers began isolating and studying RNA molecules just 21 to 30 bases long.
为了在总体上了解RNA干扰和RNA，研究人员开始分离并研究只有21到30个碱基长的RNA。
In short, DNA makes messenger RNA, and messenger RNA makes proteins.
简言之，脱氧核糖核酸产生了信使核糖核酸，信使核糖核酸又产生了蛋白质。
The mature miRNA is incorporated into an RNA-induced silencing complex that binds to a target messenger RNA (mRNA).
成熟microRNA与目标mRNA结合，形成了RNA诱导的基因沉默复合体。
When sense and antisense RNA molecules meet, they bind to each other and form double-stranded RNA.
当感觉和抗感觉RNA分子相遇的时候，他们结合在一起形成双链的RNA。
Peripheral T-lymphocyte subsets of 48 HCV-RNA seropositive and 35 HCV-RNA seronegative chronic hepatitis -C patients were investigated arid 20 normal subjects were kept as control.
对48例血清HCV-RNA阳性和35例HCV-RNA阴性的慢性丙型肝炎（慢丙肝）患者外周血T淋巴细胞亚群进行观察，并与20例正常人对照。
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？
Messenger RNA (mRNA) -- an RNA molecule that serves as a template for protein synthesis.
信使核糖核酸-- 核糖核酸的一种，当蛋白质合成中当作模板指定讯息的转译。
RNA polymerase in RNA virus is different from host cells restrict it's high and early expression. The restrict is moderate compared with other virus genes.
RNA病毒的聚合酶基因总体上和宿主密码子使用类型不一致，限制了聚合酶基因的及早和过高表达，但其密码子使用频率对聚合酶的限制是适中的。
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。
The paper builds tree-model of RNA molecules and utilizes frequent sub tree mining algorithm to mine common topological patterns among RNA secondary structures.
本文对RNA分子建立树形模型，利用频繁子树挖掘算法挖掘RNA二级结构中的公共拓扑模式。
Extracellular RNA is a group of RNA that is bound or free, which can not only play an important role in life, but also be the useful molecular markers for disease diagnosis.
细胞外RNA是存在于细胞外以结合或游离形式存在的一类RNA分子，它不仅在生命过程中起着非常重要的作用，而且可以作为疾病诊断有力的分子标志。
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。
Digital coding of RNA sequences has great advantage of mathematical and logical operations: (1) According to the parity of RNA digital sequences the last nucleotide bases can be determined.
RNA序列高维空间数字编码的运算法则是：(1)根据RNA序列数码的奇偶性质，可以推导出其与末位碱基的对应关系。
So this research improved the efficiency and quality of RNA extraction, it developed an efficient method for RNA extraction.
此研究提高了RNA的提取效率和质量，建立了一种高效提取RNA的方法。
The viruses were made harmless and then genetically engineered to carry genetic material called RNA that would interfere with the faulty RNA produced by the mutant human SOD1 genes in the mice.
病毒通过缺失使之变得无害，再通过基因操作携带遗传物质RNA，该RNA能干扰老鼠身上被植入的人SOD1突变基因所产生的异化RNA。
Research of RNA-protein interaction is important for the study of RNA regulation in gene expression. The.
要研究RNA对基因表达的调控就必须对RNA -蛋白质之间相互作用的方式进行研究。
Posttranscriptional gene silencing (PTGS) in plants is a form of RNA silencing by which target RNA is degraded in a sequence-specific manner.
植物中的转录后基因沉默(PTGS)是RNA沉默的一种形式，通过PTGS能对目标RNA进行特异性降解。
Viruses that can be modified include stranded RNA viruses, especially plant stranded RNA viruses such as the cowpea Mosaic virus.
可被修饰的病毒包括链rna病毒，特别是植物链rna病毒，例如豇豆花叶病毒。
Viruses that can be modified include stranded RNA viruses, especially plant stranded RNA viruses such as the cowpea Mosaic virus.
可被修饰的病毒包括链rna病毒，特别是植物链rna病毒，例如豇豆花叶病毒。
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