查询词典 DNA

The phylogenetic relationships of Fagales were investigated by means of molecular systematics, which was based on six DNA sequences from three genomes, including chloroplast DNA trnL-F, matK, rbcL, and atpB, nuclear 18S ribosomal DNA, and mitochondrial gene matR.

本文采用来自三个基因组--叶绿体、线粒体和核基因组的六个DNA序列片段，对壳斗目的系统发育进行了重建，主要探讨了壳斗目八个科的科间系统演化关系及不同基因系统树间存在冲突的原因。

Phylogenetic analyses indicated that Accipitridae was closer to Strigidae instead of Falconidae, and the classification of Tytonidae was different from the previously morphological and DNA-DNA hybridization study.

系统发育分析显示，隼形目鹰科更接近于鸱鸮科而不是隼科，而草鸮科的分类地位也与传统的形态学和DNA－DNA杂交数据的结论存在分歧。

Phylogenetic analyses indicated that Accipitridae was closer to Strigidae instead of Falconidae,and the classification of Tytonidae was different from the conclusion from the previously morphological and DNA-DNA hybridization studies.

系统发育分析显示，隼形目鹰科更接近于鸱鸮科而不是隼科，而草鸮科的分类地位也与传统的形态学和DNA－DNA杂交数据的结论存在分歧。

The 648 bp mitochondrial cytochrome c oxidase subunit I gene was examined in 8 species of raptors (5 species in Accipitridae, Falconiformes; 3 species in Strigidae, Strigiformes) by PCR with universal primers. 99 additional barcode sequences were downloaded to explore whether the DNA barcodes could distinguish between these species.

用DNA条形码通用引物扩增了我国8种猛禽（14只个体）的线粒体细胞色素c氧化酶亚基I基因，选取648 bp DNA条形码标准区域，结合99条猛禽条形码序列，探讨DNA条形码对猛禽的识别和鉴定。

The 7.4 kb DNA fragment containing the S. Choleraesuis std fimbrial gene cluster was PCR amplified and cloned into the pCR-XL-TOPO vector. The open reading frames of the std fimbrial gene cluster were analyzed. The resulting recombinant DNA was transformed into Escherichia coli HB101 strain.

本实验室藉由PCR方式，增幅7.4 kb的std线毛基因组，将其选殖至pCR-XL-TOPO质体DNA，委外定序后，分析std线毛基因组之开放性读框，进而将此重组DNA送入大肠杆菌HB101，并藉由RT-PCR及西方点墨试验观察到S。

In the GISH, a given genomic DNA was hybridized to chromosomes of their own or other species and signals of repetitive DNA sequences were exclusively detected.

一种新的通过基因组原位杂交进行的分子显带方法，即利用一个物种的基因组DNA作探针，对该物种或其它物种的染色体进行原位杂交，其杂交信号的检出程序是专门用于检出重复DNA顺序的。

Our rapidly increasing understanding of the human genome and those of other organisms means that we are becoming capable of genetically modifying ourselves by cutting out ,rearranging,and adding various snippes of our own DNA molecules and implanting DNA swquences form other organisms.This secondary evolution will allow us to change the course and speed of primary evolution (based mostly on the glacially slow process of natural selection) of our own species and other species by creating types of genes not currently found in the rest of nature.

我们很快地增加了对人类基因组以及那些其他生物的了解的方法，我们成为有能力从基因方面修改我们自己的基因，藉由删去关掉、重新排列、以及增加各种的片段在我们拥有的DNA分子以及注入一连串的DNA序列从其他生物，而这第二个发展出来的东西将是允许我们藉由创造的类型(创造的类型：不是属於现在处於自然界中的基因)改变初始发展的过程及速度(初始发展：主要是建立在兵期的缓慢的自然淘汰的过程)在於我们拥有的种类以及其他种类。

AFM observation further indicates that the sidewalls of SWCNTs are helically wrapped by DNA, which results in stable SWCNT-DNA complexes.

AFM结果进一步证明DNA均匀缠绕在单根离散的碳纳米管外壁，形成稳定的SWCNT-DNA复合物。

Using cytochalasin D to prevent global actin from forming filamentous structures, the production of Heliothis armigera nuclear polyhedrosis virus in Hz-AM1 cells grown in the medium containing 0.5μg/ml CD was completely inhibited while its production was reduced to 10〓 in the presence of 0.1μg/ml CD by plaque assay. However, Western blotting revealed that the actin quantity in infected host cells treated or untreated with CD was almost identical. Additionally, CD had no effect on the DNA synthesis of HaNPV.

Western blot表明细胞松弛素D并不影响受染细胞中肌动蛋白的含量，Dot blot表明病毒DNA的合成也没有受到影响，但电子显微镜超薄切片发现在0.5ug／mL细胞松弛素D中形成的病毒粒子形态与正常的有明显区别，认为细胞松弛素D抑制棉铃虫核型多角体病毒的增殖是因为抑制病毒的DNA和蛋白组装成完整有感染性的病毒粒子，即丝状肌动蛋白对病毒粒子的脱壳和DNA的复制、转录没有影响，但对病毒粒子的组装是必须的。

"Think about a chromosome as being a highway," says Aramayo. In order to function properly, some sections of the highway must have illumination, which means DNA must be expressed, whereas other sections must not have illumination, which means DNA must not be expressed, or that the region must be heterochromatic.

Aramayo说，我们可以将染色体想象成一条高速路，为了正常运行，高速路的一些区段需要照明，也就是说DNA必须被表达；而其它区段则不需要照明，即DNA不需要表达，或这些区段必须被异染色质化。。。。。。。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。