Once synthesized, the histones move into the cell nucleus, where a section of DNA wraps around them to form a structure that resembles beads, or knots, on a string.
一旦合成，组蛋白就会进入细胞核，细胞核内的DNA片段会将组蛋白包裹起来，形成一种类似串珠或绳结的结构。
Fossils are often washed together on-site in a large bath which can allow water and contaminants in the form of contemporary DNA to permeate into the porous bones.
化石通常在大浴池中进行现场清洗，这可以使水和现代DNA形式的污染物渗透到多孔骨骼中。
Some researchers think that DNA origami proves microscopic material can be controlled to form specific objects, including smaller circuits.
一些研究人员认为DNA折纸证明可以控制微观材料使其形成特定物体，包括更微型的电路。
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。
Structurally, DNA is composed of two strands that intertwine to form a spring-like structure called the double helix.
从结构上讲，DNA是由两条链相互缠绕构成弹簧状结构称为双螺旋。
Phosphorus chains form the backbone of DNA and its chemical bonds, particularly in a molecule known as adenosine triphosphate, the principal means by which biological creatures store energy.
磷链构成DNA的骨架及其化学键，特别是在一种叫做三磷酸腺苷的分子中。 三磷酸腺苷是生物体储存能量的一种重要形式。
That was all but certain from their previous study of the creature's mitochondrial DNA (an abundant form of the molecule found in cells' powerpacks), released in March.
而确切的说，这都源于他们早前在今年三月发表的生物线粒体DNA(细胞动力组中的一种复杂形态的分子)研究。
The chemical structures that form the units of DNA and RNA and that encode genetic information i.e. the bases that make up the base-pairs are A, G, T, C and U (see DNA).
形成DNA、RNA单体以及编码遗传信息的化学结构，也就是组成碱基对的碱基包括A、G、T、C、U。
Cerepro harnesses an adenovirus, a type of virus which carries its DNA in double-stranded form, to transmit a gene responsible for the production of a protein called thymidine kinase.
Cerepro被固定在一个腺病毒(一种能够携带双链形式的DNA病毒)上来传染基因，这个基因负责产生胸苷激酶这种蛋白质。
Biochemists call it the central dogma: Genetic material, in the form of a long nucleic acid polymer called DNA, stores a digital record of every protein's design.
生物化学家将这套系统称之为中心法则(central dogma)：以长链核酸聚合物形式存在的DNA是遗传物质，它储存着每种蛋白质设计的数据记录。
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。
Bacteria have defences against viruses in the form of chemicals called restriction enzymes, which chop up foreign DNA.
细菌有一种对病毒的防御机制：一种叫做限制性内切酶的化学物质可以切断外源dna。
Crick, who saw a photo only of Dr. Franklin's B form, immediately recognized that DNA consisted of two parallel helixes, or twisted chains, running in opposite directions.
克里克见过富兰克林的B型照片，立即发现DNA包含反向旋转的两个并列螺旋列或叫扭曲链。
A hundred years on, detectives have a new tool at their disposal in the form of DNA matching.
一百年以来，侦探们一直拥有可以随意使用的DNA匹配工具。
This attaches methyl groups (a carbon atom and three hydrogens) to either adenine or cytosine, two of the four chemical bases that form the alphabet of DNA, depending on the gene involved.
腺嘌呤和胞嘧啶是DNA四大成分其中之二，而到底附着于哪一个则取决于具体的基因。
Previous work had shown that one form of this receptor, which contains a series of seven repeats of the same DNA sequence, is associated with increased alcohol cravings in a variety of situations.
已有研究表明，一个包含一组重复七次出现的序列的受体，与很多情况下某个人酒瘾大增有关。
Histone proteins both protect DNA and regulate genes as they combine with DNA to form chromatin.
组蛋白既保护DNA也在它们与DNA结合形成染色质时调节基因表达。
By turning genes on and off, methyls can have a profound impact on the form and function of cells and organisms, without changing the underlying DNA.
通过开启和关闭基因，甲基不改变基本的DNA链就可以对细胞和机体的形态与机能产生深远的影响。
Instead, epigenetic processes attach chemical groups to genes or to histones, proteins that are intertwined with DNA to form chromosomes, to activate genes or to shut them down.
相反，表观遗传过程主要是将化学结合到基团或组蛋白，后者是与DNA交织在一起形成染色体，从而激活或关闭基因。
The material, which consists of synthetic spheres 'glued' together with short strands of DNA, could be used to underpin a new class of biosensors, or form the basis for new drug delivery systems.
这种由合成微球与短链DNA结合的材料可以用作一种新类型的生物传感器的基体，或是用来构成新的药物输送系统的基础。
The single piece of DNA molecule winds itself around special proteins to form into very tight coils like a string (shown in yellow).
这个一段DNA分子把自己弯曲在特殊的蛋白质周围而形成非常紧的卷如一段弦一样(如黄色部分所示)。
These are made of chromatin, which combines DNA with a set of proteins known as histones; four similar histones join together to form a cylindrical spool around which the DNA wraps.
染色体由染色质组成，而染色质则是DNA被一组称为组蛋白的蛋白质包裹而成：四种相似的组蛋白结合形成一个圆柱形的线缆包裹着DNA。
A complete viral particle consisting of RNA or DNA surrounded by a protein shell and constituting the infective form of a virus.
病毒粒子一整个病毒粒子，由被蛋白质外壳包围的核糖核酸或脱氧核糖核酸组成，并构成一个病毒的传染形式。
Conclusions GMA with electrophilic group could react with negatively charged centers on DNA and form GMA DNA adducts.
结论具有亲电子集团的GMA能与DNA带负电荷中心反应形成GMA - DNA加合物。
The oligonucleotide probe LZF-I, which is synthesized by us, can form thehybrid molecules with the simple repetitive DNA of three species of fishes.
我们自己制备的LZF—I探针，能与鱼类基因组DNA中的简单重复序列杂交形成杂交分子。
That strategy is to tuck in the ragged chromosomal tips and form the cap, thereby hiding those tips from enzymes whose job it is to reattach errant DNA strands.
其策略就是把凌乱的染色体末端卷起，形成帽子，由此将DNA末端隐藏起来，不被识别错误DNA链的酶发现。
While heat shock promoted the phosphorylation and nuclear translocation of HSF1, the ability of this nucleus-localized HSF1 to form the DNA-binding trimer was reduced.
HSF1的亚细胞定位分析显示，HSF1主要存在于年轻细胞胞质中，热刺激促使三体形成和核转移；
While heat shock promoted the phosphorylation and nuclear translocation of HSF1, the ability of this nucleus-localized HSF1 to form the DNA-binding trimer was reduced.
HSF1的亚细胞定位分析显示，HSF1主要存在于年轻细胞胞质中，热刺激促使三体形成和核转移；
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