The beads are DNA segments wrapped around the histone.
这些珠子是包裹在组蛋白上的DNA 片段。
You have a fragment of some kind of DNA that you would like to clone or make many copies of.
你有了某种想要克隆或复制的DNA片段。
Now if I can stain in some way, if I can somehow label the DNA fragments that I'm interested in, I could find out where those fragments are on this gel.
现在如果我有染色的某种方法，如果玩可以以某种方式对我感兴趣的DNA片段进行标记，我就能知道这些片段在这凝胶板上的位置。
You know that all of a person's genetic information is contained on very long pieces of DNA called Chromosomes.
你知道，一个人所有的遗传信息都包含在一个叫做染色体的长DNA 片段上。
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。
You see that it sort of looks like—well actually it's much more complex than this, but it reminds us—a couple of springs linked together, two coiled-up pieces of DNA.
你看它看起来有点像——好吧，实际上它比这个复杂得多，但它让我们想起——一些连在一起的弹簧，像两个螺旋状的DNA 片段。
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？
They focused their efforts on just over 13, 000 genes that have been well enough studied by the Human Genome Project for their DNA sequences to be known accurately.
为了使他们充份了解所要研究的基因片段，他们工作的重心放在已被人类基因组计划充分研究的13，000段基因片段。
Moreover, existing sequencing techniques involve breaking DNA into small chunks of less than 100 base pairs.
而且现有的测序技术要把DNA破碎成少于100个碱基对的小片段。
The Hap Map contains samples from 11 populations around the world and consists of readings of the DNA at specific sites along the genome where variations are common.
该计划包括了世界上11种人的基因标本，这些标本的构成因子是对基因片段中可能发生变异的特定点进行研究所得结论。
"We identified 13 'DNA markers' from 11 genes that are informative to predict a person's hair colour," said Professor Kayser, chair of the Department of Forensic Molecular Biology at Erasmus.
“我们从11个基因中识别出了13个可以提供信息的“基因组片段”来预测一个人的头发颜色”，伊拉·斯莫兹大学法医分子生物系的凯泽教授说道。
One end of the boy's swapped DNA lodged itself in the same region that the Oxford team had identified in the West London family, right in the middle of the FOXP2 gene.
被交换的片段一端正好镶嵌在牛津大学人员在伦敦西区那个家庭中发现的标记的位置上，就在FOXP2基因的中间。
For example, new high-throughput sequencers turned out to work best with small fragments of dna-just what degraded ancient samples yield.
举例来说，新型高吞吐量测序仪对小片段DNA的测序效果最好，而从受损的古生代样本提取出的正是这种小片段。
Genetic modification can be used to cut out selected pieces of DNA (or genes) using special enzymes.
基因改造，就是借助某种特别的酶，删除选中基因片段。
Two snippets of DNA are involved.
这具体包括DNA中的两个片段。
What is more, the method can make sense of the short fragments of DNA that are all that remain in the crumbling bones of a Neanderthal specimen.
另外，这一方法可以帮助搞清尼安德特人标本骨头碎片里残存的DNA小片段。
We found that synthesizing accurate DNA in large pieces was extremely difficult.
大片段精确合成DNA是非常困难的。
That will be one piece of the DNA.
那将是DNA的一个片段。
Genes — discrete segments of long DNA molecules — transcribe their sequences onto single-strand messenger RNA molecules, which then serve as templates for proteins.
对遗传信息进行编码。基因——长长的脱氧核糖核酸分子中的不连续的片段——把它们的序列转录成单线信使核糖核酸分子，核糖核酸又成为蛋白质的模板。
Mammal genomes contain thousands of stretches of DNA called LINEs.
哺乳动物基因组包含了数以千计被称为LINEs的大片段DNA。
The artificial gene units are created by joining fragments of DNA from viruses, bacteria, plants and animals.
这些人造的基因单位通过连接病毒、细菌、植物与动物的基因片段创造。
The team sequenced the same piece of DNA - 10,000,000 or so letters or 'nucleotides' from the Y chromosome - from two men separated by 13 generations, and counted the number of differences.
这个小组以相隔了13代的两个男性为测试对象，在其Y染色体相同区域上选取长约10， 000， 000核苷酸片段进行了测序，并计算了两者之间的差异。
Now we are finally pinning down how much differences in non-coding DNA - stretches of the molecule that don't produce proteins and used to be considered "junk" - shape who we are.
现在，我们终于开始着手确定非编码DNA(不产生蛋白质的分子片段，习惯上被认为是“垃圾”)的差异性对人类的影响水平。
Gene chips contain several thousand small fragments of DNA on a small piece of glass.
基因芯片在一小块玻璃片上包含了数千种DNA小片段。
At one end of each snippet, the researchers attached a fluorescent protein, and, at the other end, they engineered the DNA so that it could "quench" the fluorescent light.
在每一个片段的末端，研究者连上一个荧光蛋白，在另一端他们工程DNA能熄灭荧光的亮度。
This attraction might help gene fragments align properly before they get shuffled about, perhaps aiding the careful weaving of DNA that occurs during reproduction.
这种吸引力可以帮助基因片段在杂交之前调整对齐，或许也会有助于DNA在复制时精巧的编织。
Bacterial artificial chromosome (BAC) is a kind of vector system used to construct large fragment insert libraries of genome DNA in human, animals and plants.
细菌人工染色体(BAC)是一种承载dna大片段的克隆载体系统，用于人、动物和植物基因组文库构建。
Bacterial artificial chromosome (BAC) is a kind of vector system used to construct large fragment insert libraries of genome DNA in human, animals and plants.
细菌人工染色体(BAC)是一种承载dna大片段的克隆载体系统，用于人、动物和植物基因组文库构建。
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