英语释义

• (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information;

  "DNA is the king of molecules"

片语

DNA ligaseDNA连接酶；多（聚）脱氧核糖核苷酸合酶

DNA supercoilDNA supercoiling refers to the over- or under-winding of a DNA strand, and is an expression of the strain on that strand. Supercoiling is important in a number of biological processes, such as compacting DNA.

dna fingerprintDNA指纹；DNA指纹图谱（等于genetic fingerprint）

recombinant dna technologyDNA重组技术

dna replicationDNA复制；去氧核醣核酸的复制

genomic dna染色体杂交品种

mitochondrial dna线粒体DNA

dna methylation甲基化；DNA甲基化

dna sequencingDNA测序；DNA定序

Complementary DNA互补DNA

dna fingerprintingDNA指纹图谱；DNA指纹分析

dna probeDNA探针

Selfish DNA自在dna

DNA SequencersDNA测序仪

dna hybridizationDNA杂交

plasmid dna质粒

DNA条形码DNA bar coding

recombinant dnaabbr. 重组基因（recombinant deoxyribonucleic acid）

dna polymeraseDNA聚合酶；脱氧核糖核酸聚合酶

mt dna线粒体基因

Host DNA主基因

unscheduled dna synthesis期外DNA合成；非常规DNA合成

dna repairDNA修复

英汉例句

• Her role in helping to solve the mystery of DNA is unquestioned, and her place in science history is secure.

  在帮助揭示DNA的秘密中，她的作用不成问题，而且她在科学史上的地位也是牢固的。

• It mutates the DNA directly. But most of what we see seems to be reversible.

  辐射直接使DNA变异，但是我们看到的辐射光大部分是可逆的。

• Scientists then take blood and tissue samples as well as DNA from the panther to monitor its health and reproductive viability.

  然后，科学家再从豹身上提取血液和组织以及DNA样本，监测其健康和生殖发育能力。

• They lie outside the nucleus that houses the main human genome, and because there may be hundreds of them in each cell, their DNA is particularly easy to detect.

  它们位于人类基因组的核心之外，由于在每个细胞内它们的存在都数以百千计，因此它们的DNA就特别容易被检测到。

• By genetically modifying the DNA of chickens, Tiley and his colleagues have prevented the virus from being transmitted from chicken to chicken.

  通过利用基因工程修改鸡的DNA，泰利和他的同事已成功阻止了禽流感病毒在鸡群中传播。

• Enlist, equip and empower every employee to understand and live your brand「s DNA through their unique talents and expertise - help them understand how they contribute to the brand」s success.

  争取、培育和授权每一名员工，通过他们独特的智慧和经验理解和实践你的品牌的DNA，帮助他们懂得如何为品牌的成功作出贡献。

• How could so many tiny fragments of DNA be pieced together?

  怎么可能将如此多的DNA小片段整合起来呢？

• It is perfectly suited for long bit vectors such as DNA or other numeric data.

  它非常适合于象dna或者其它的数值数据之类的长的位向量。

• The unit shown above, therefore, is no more than a small portion of the whole DNA molecule.

  所以，上面所展示的一个组别的分子式不过就是全部的DNA分子的一小部分。

• Although the egg and sperm each supply half the DNA for the new baby, the egg provides all the cellular support systems, including enzymes and proteins.

  尽管精子和卵细胞都提供新生儿一半的DNA，卵细胞却提供了所有的细胞环境支持，包括酶系统和蛋白质等。

• British scientists begin a new study on Tuesday to consider how human DNA is used in animal experiments and to determine what the boundaries of such controversial science might be.

  英国科学家十日开始一项新研究，考虑如何在动物实验中使用人类脱氧核糖核酸，并确定这种引起争议的科学研究，界线可能在哪里。

• So while the idea of DNA riding aboard extraterrestrial objects has been floated before, this is the first time we've been presented real evidence backing that notion.

  因此，虽然之前DNA乘地球之外的物体来到地球的想法被提及过，但是这是我们首次呈现出真实的证据支持这一概念。

• It would have telomere DNA at the center, and it would have two centromeres.

  它的中心部位将有端粒dna，而且会同时含有两个着丝粒。

• Rather than culturing a bug to identify what is infecting a patient, for instance, a hospital might determine its DNA sequence.

  而不是培养一个错误，以确定是什么感染的病人，例如，医院可能会决定其DNA序列。

• Each molecule of DNA can be subdivided into smaller segments consisting of a few thousand or a few tens of thousands of nucleotides.

  每一个DNA分子都可以再被细分为更小的部分，这些细分后的部分都含有上千或上万个核苷酸。

• Many of the key molecules for life have a specific direction, or handedness: DNA twists to the right, amino acids to the left.

  构成生命体的许多关键分子都有一个特定的导向，或者说是旋向性：脱氧核糖核酸右旋，氨基酸左旋。

• Chromosomes are strands of DNA that carry genes, and there are 23 pairs in almost every cell in the body.

  染色体是由携带着基因的DNA分子链组成，人体内几乎所有的细胞都有23对染色体。

• Of course, some people might not want their DNA indexed.

  当然，有些人可能不愿意他们的DNA被索引。

• Be obsessive - he not only knew DNA was important, but it was all he could think about night and day.

  要入迷-他不仅知道DNA是非常重要的，而且不论晚上还是白天，只要有时间他就会思考它。

• So when they form, the histones are stripped off and replaced with another molecule called protamine, which shapes the DNA into an even tighter bundle, where the genes cannot be read.

  所以当他们成形的时候，组蛋白被脱离并且被一种叫做鱼精蛋白的分子代替。它可以把DNA组装成更加紧密的一束，这些基因是无法被阅读的。