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单词 RNA
释义

RNA /ˌa:r en 'ei/

英汉-汉英词典
abbr. Ribonucleic Acid核糖核酸
词组 | 习惯用语
rna polymerase [生化]核糖核酸聚合酶
messenger rna [生化]信使RNA
antisense rna 反义RNA
ribosomal rna [生化]核糖体核糖核酸(等于rRNA)
英语例句库
  1. Acquired immunity, adaptable cytoprotection and RNA interference are organism acquired defense functions.
    获得性免疫、适应性细胞保护和RNA干扰均为生物获得性防卫功能。
  2. Metachromatic granules contain RNA and polyphosphates They are deeply stained with aniline dyes。They are characteristic features of the corynebacteria.
    异染颗粒含RNA和多聚磷酸盐。用苯胺染料可浓染。是棒状杆菌的特点。
  3. Consequently RNA interference was observed is eukaryotic organisms including fungi, Arabidopsis,C. elegans, trypanosomes, hydra, planaria, Drosophila, zabrafish, and mouse.
    到目前为止在真菌、拟南芥、线虫、锥虫、水螅、涡虫、果蝇、斑马鱼、小鼠等真核生物中都发现存在这一基因沉默机制。
  4. In double-immunodiffu-sion test,this antiserum could form precipitin lines with different batches of 615 mouse liver RNA polymerases B.
    在免疫扩散实验中,这种抗血甭可以和不同批号的615小鼠肝RNA聚合酶B产生沉淀线。
  5. RNA 2: Clustering by Gene or Condition and Other Regulon Data Sources Nucleic Acid Motifs; The Nature of Biological "proofs."
    使用基因或状态及其他调控单元资料来源做常态化的群集方法、核酸模体、生物证据的本质。
  6. Like eukaryotes, but unlike bacteria, they have introns in their transfer RNA, but like bacteria they have polycistronic operons (gene regulators).
    像真核生物而不像细菌,转运RNA中含有内含子,还有细菌不具备的多顺反子的操纵子(基因的调控子)。
  7. RNA hairpins that contained nA and sU were able to hybridize to DNA probes under conditions where the unmodified hairpins did not.
    RNA的发夹载NA和苏能够杂交,以DNA探针条件下,在未修改的发夹没有。
  8. Cistron A unit of function, i.e. a segment of DNA that determines a single polypeptide chain of a protein molecule or a messenger RNA molecule.
    是一个功能上的结构,它是决定蛋白质分子的一条简单多肽链或信使RNA分子的DNA片断。
  9. Then their synthese speed slows down.But the synthese of RNA and DNA inthe follicular cell is continuous during vitellogenesis, which may relate toformation of livetin.
    而滤泡上皮细胞在卵母细胞卵黄形成期,它的RNA和DNA的合成均较快,因此认为滤泡上皮细胞合成分泌了一些物质参与卵黄蛋白的形成。
  10. Chromatin The loose network of threads seen in nondividing nuclei that represents the chromosomal material, consisting of DNA, protein (mainly histone), and small amounts of RNA.
    间期细胞内由DNA,蛋白质(主要是组蛋白),以及少量的RNA组成的线性复合结构,是间期细胞遗传物质存在的形式。
  11. As a means to address this deficiency it was recently shown that human spermatozoal RNA isolated from the ejaculate can be used to transcriptionally profile the male gamete.
    最近从人类精液中分离出的RNA可被用来显示转录的男性配子的轮廓。
  12. NUMBER OF ANTIVIRALS on sale and under study operate after uncoating, when the viral genome, which can take the form of DNA or RNA, is freed for copying and directing the production of viral proteins.
    有些已上市或研发中的抗病毒药剂,作用在病毒脱壳后的阶段,此时病毒的基因组(可能是DNA或RNA)已释放出来,准备进行复制并引导病毒蛋白质的合成。

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原声例句
经济学人-科技

Dr Bernards, however, thinks he can, by using molecules called short hairpin RNAs.

不过现在,伯纳兹博士称,利用一种叫做短发夹RNA的分子,他找到了区别二者的方法。

日常生活医学科普

The explanation of DNA conversion into RNA and finally RNA into proteins is called central dogma.

将 DNA 转化为 RNA,最后将 RNA 转化为蛋白质的解释称为中心法则。

双语版 TED-Ed 演讲精选

Those amphiphiles then form bubbles of their own around particles including the virus's RNA and proteins.

然后这些两亲化合物就会在病毒 RNA 和蛋白质周围形成泡泡。

当月 CNN 10 学生英语 2020年8月合集

Killing the DNA, RNA and not letting them reproduce.

杀死病毒的DNA、RNA,不让它们再生。

Scishow 精选系列

Nucleotides are the building blocks of DNA and RNA.

核苷酸是 DNA 和 RNA 的组成部分。

Osmosis-防疫 COVID-19

One of these is isothermal amplification which also checks for viral RNA.

其中之一是恒温扩增,它检查病毒的RNA

VOA常速英语_美洲

It's looking for the actual antigen, the actual RNA of the virus.

鼻腔拭子检测寻找真正的抗原,也就是病毒的真正RNA

《卫报》(文章版)

We will fund new approaches to vaccine development, including RNA and DNA vaccines.

我们将资助疫苗开发的新方法,包括RNA和DNA疫苗。

经济学人-科技

RNA molecules are single-stranded copies of the double-helical DNA genes in the cell nucleus.

RNA分子是细胞核内的双螺旋DNA基因的单链拷贝。

PBS趣味科普

The course also addresses some physical chemical issues of molecular biology like RNA folding.

本课程还涉及分子生物学的一些物理化学问题,如 RNA 折叠。

中文百科

核糖核酸

一段溶于水中而折叠成发夹状螺旋构造的部分单股mRNA分子结构。
酵母苯丙氨酸转运核糖核酸的X射线结构。
紫色:受干

酒红色:D-环

蓝:反密码子环

橙:可变环

绿色:TPsiC环

黄:在接受茎的CCA-3'

灰色:反密码子
此图是一个细胞,内圈的即是核膜,核膜内最上面那条是一个正常的双股DNA,而往下一个则是已松开两股,正在进行转录的DNA。第三条是合成好的mRNA,最外圈的图显示mRNA已经离开了细胞核,来到了细胞质进行转译。
一种的常见RNA修饰,尿苷(Uridine)被转换成假尿苷(Pseudouridine)。

核糖核酸英语:ribonucleic acid,缩写:RNA)是一种重要的生物大分子,因为分子由核糖核苷酸组成而得名。

每个RNA分子都由核苷酸单元长链组成,每个核苷酸单元含有一个含氮碱基、一个核糖和一个磷酸基。RNA是具有细胞结构的生物的遗传消息中间载体,并参与蛋白质合成;还参与基因表达调控。对一部分病毒而言,RNA是其唯一的遗传物质。

RNA存在于一切细胞的细胞质和细胞核中,也存在于大多数已知的植物病毒和部分动物病毒以及一些噬菌体中。

英语百科

RNA 核糖核酸

A hairpin loop from a pre-mRNA. Highlighted are the nucleobases (green) and the ribose-phosphate backbone (blue). Note that this is a single strand of RNA that folds back upon itself.
Bases in an RNA molecule.
Three-dimensional representation of the 50S ribosomal subunit. Ribosomal RNA is in ochre, proteins in blue. The active site is a small segment of rRNA, indicated in red.
Watson-Crick base pairs in a siRNA (hydrogen atoms are not shown)

Ribonucleic acid (RNA) is a polymeric molecule implicated in various biological roles in coding, decoding, regulation, and expression of genes. RNA and DNA are nucleic acids, and, along with proteins and carbohydrates, constitute the three major macromolecules essential for all known forms of life. Like DNA, RNA is assembled as a chain of nucleotides, but unlike DNA it is more often found in nature as a single-strand folded onto itself, rather than a paired double-strand. Cellular organisms use messenger RNA (mRNA) to convey genetic information (using the letters G, U, A, and C to denote the nitrogenous bases guanine, uracil, adenine, and cytosine) that directs synthesis of specific proteins. Many viruses encode their genetic information using an RNA genome.

近义、反义、联想词
近义词
n.
polymer

联想词
DNA脱氧核糖核酸;cDNA互补DNA;genome基因组;polymerase聚合酶;eukaryotic真核状态的;nucleotide核苷酸;proteins蛋白质;protein蛋白质;nucleic核的;PCR光电导继电器;polypeptide多肽;
英英词典
rna n.
  1. (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 the cell

  2. synonymous: ribonucleic acid
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