英语释义

• (biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in

  "ribonucleic acid is the genetic material of some viruses"

片语

sodium RNA细胞修复

RNA replicase核糖核酸复制酶

messenger rna信使RNA

ribosomal rna核糖体核糖核酸（等于rRNA）

Messenger RNA信使RNA

RNA polymerase核糖核酸聚合酶

antisense rna反义RNA

RNA editaseRNA编辑酶

rna polymerase核糖核酸聚合酶

英汉例句

• Rathore used a new technique, called RNA interference, to construct a genetic sequence that blocked the gossypol-producing enzyme in the seeds only.

  拉索尔教授运用了一项名为核糖核酸（RNA）干扰的新技术，仅在棉籽中建立了一个阻断棉子酚生长酶的基因序列。

• His plan is to make one that reads regular RNA transcripts of genes but can string together wrong-handed amino acids to form mirror proteins.

  他计划去创造一种不但能阅读寻常rna转录体同时又能将错误手性氨基酸串联起来形成镜像蛋白的核糖体。

• RNA interference gives researchers a new tool for understanding how living things grow--how a plant assumes a particular shape, for example, or how a baby's hand forms during gestation.

  核糖核酸的干扰作用为研究人员搞清生命生长提供了一个新工具——比如说，植物是如何展现其独特外形的，婴儿的小手在母体里是如何形成的，等等。

• The reason why women are more robust appears to be microRNAs - short strands of RNA encoded on the chromosome, scientists believe.

  科学家认为，女性更健康的原因可能在于微rna(核糖核酸)，它是染色体上RNA编码的短片段。

• If a gene is active, the RNA in the sample binds to the complementary gene fragment on the slide, and can be detected under ultraviolet light as a coloured dot.

  如果基因是激活的，样本中的RNA就会与相应的基因片段结合在一起，再利用紫外光观察，那些激活的基因就成为一个个被染色的斑点。

• Both clones included a DNA sequence that allow a fluorescent protein expressed in the cell to bind to cyclin D1 RNA the moment it is transcribed.

  这两个克隆都包含有一段DNA序列，能在在细胞周期蛋白d1的RNA被转录的时候将荧光蛋白绑定到其上。

• Once inside the cell, if the RNA computer finds tracers of a virus or cancer it could release the appropriate drugs to kill just that one cell.

  RNA计算机一旦进入某一细胞内部，如果发现病毒或癌癥的蹤迹，它就可以释放相应药物来仅仅杀死这一个细胞。

• If the device detected a chemical or a certain combination of the two chemicals, then the strand of RNA was left alone, which produced the green glowing protein.

  如果该设备探测到一种化学药品或两种化学药品的某一组合，这段RNA就保持不变，从而生成发绿光的蛋白质。

• Third, and massively important, if early life started as sketched above, a 「Darwinian transition」 to cells that use DNA, RNA and code for proteins via a genetic code must take place at some point.

  重要的是，如果早期生命以如上所述的方式开始，细胞的使用DNA，RNA和蛋白质代码的「达尔文过渡」，必须在某个时候通过遗传密码发生。

• To assess gene expression in each small bit of tissue, researchers expose its RNA to a gene chip, or DNA microarray.

  为了评价每小片组织中的基因的表达情况，研究人员将它的RNA暴露给一个基因芯片，或者DNA阵列。

• And here, surprisingly, the rise of RNA may be an important part of that description.

  在这里你会惊奇地发现，RNA的出现是这种描述的重要组成部分。

• For one, Dunman says, the bug would waste energy following outdated instructions and turning RNA into proteins it no longer needed.

  一件事是，细菌会根据过时的指令浪费能量并将RNA转换为为它不再需要的蛋白质。

• While there are scientists who think RNA could have arisen spontaneously on early Earth, others say the odds of such a thing happening are astronomical.

  尽管有些科学家认为RNA可能自然产生于早期的地球上，而另一些科学家却认为发生这种事情的可能性犹如天方夜谭。

• Eigen supposed a set of replicating RNA pairs of complements, each itself able to replicate as in the Orgel type experiments noted above.

  艾根猜想一套成对复制的互补的RNA，其中每一个都能够像上文所述的欧高型的实验那样复制本身。

• Dr Church is working on making ribosomes—complex contraptions with dozens of protein and RNA components—from scratch.

  切奇在研究制造核糖体——由许多蛋白质和RNA组成的复杂设计——从零开始。

• Derrick Rossi of Harvard University has performed a similar trick using synthetic RNA messenger molecules to mimic the activity of the genes in question.

  哈佛大学的德里克·罗斯进行了相似的研究，他使用合成核糖核酸信使分子模仿病变基因的活动。

• In an ideal scenario, still years away, RNA devices like this could be injected and essentially pay house calls on each cell in the human body.

  在一种理想的情况下(这还要经过数年才可能成为现实)，这样的RNA设备可以注射到人体中，对每个细胞进行逐一的拜访。

• Like DNA, RNA is a complex molecule made of repeating units of thousands of smaller molecules called nucleotides that link together in very specific, patterned ways.

  像DNA一样，RNA也是由数千个被称为核苷酸的更小分子构成的，这些核苷酸之间以非常特定的模式连接在一起。

• The virus is a single-stranded RNA virus belonging to the virus family Arenaviridae.

  该病毒为一种属于沙粒病毒科的单链核糖核酸（RNA）病毒。

• Using the tools of synthetic biology, perhaps DNA and proteins can be discarded - RNA itself can act both as a genetic molecule and as a catalyst.

  使用人造生物学工具，可能DNA和蛋白质都可以丢弃了——RNA自身可以充当基因分子和催化剂两个角色。

• Then along came RNA editing, in which guide RNAs or enzyme action modify some messenger RNAs such that the final protein sequence cannot be deduced from the gene sequence alone.

  但RNA编辑又来捣乱了：向导RNA和酶作用于信使RNA的修饰过程，这就使仅仅从基因序列来推断最终的蛋白序列成为不可能。

• Baiting mosquito traps with CARDS soaked in honey, and then analysing viral RNA in saliva left by mosquitoes that feed on them, may be a way of tracking the spread of some diseases.

  将浸透蜂蜜的卡片放在诱捕蚊子的陷阱里面，并分析吸食过蜂蜜的蚊子留下的唾液里面的病毒rna，这可能成为追蹤某些传染病传播的有效方法。

• A primitive RNA might have catalysed the synthesis of phospholipids, but what advantage would phospholipids have conferred on primordial cells?

  一种原始的RNA可能催化了磷脂的合成，但是磷脂又授予了原生细胞什么优势呢？