查询词典 chromosomal

This article had showed an efficient, nonselective extraction method to gain chromosomal DNA from eight kinds of bacteria.

本文报道了利用高温处理和SDS的裂解作用相结合而建立的一种快速、简便的提取细菌染色体DNA的方法。

Furthermore, physiological processes at the organismal and cellular levels, such as differentiation, development, immune response and pathogenesis, are greatly influenced by the three-dimension (3D) chromosomal structures in the nucleus.

早期在研究人类基因体时都认为DNA是单纯的由线性序列组成，但事实上会经过缠绕和折叠形成具有三度空间结构的染色体。

The spiny eel , belonging to Perciformes, Osteichthyes, is a kind of little freshwater fish distributed in Southern China. In 1998, Our lab detected XX/XY differentiated sex chromosomes in this specie with karyotypic analysis, and then with chromosomal binding and SC observation, we identified that its two largest metacentric chromosomes were X, Y sex chromosomes in 1999. X, Y chromosomes differ each other not only in the distribution of heterochromatin but also in their shapes, which make them could be recognized directly under the light-microscope without any banding treatment.

刺鳅，属鲈形目、刺鳅科(Perciformes，Mastacembelidae)，是广泛分布于中国南方的小型淡水鱼类。1998年，我室通过核型分析，首次发现该物种具有明显分化的异形性染色体，其性别决定类型为XX／XY型。1999年，本室通过染色体显带、精母细胞联会复合体观察，再次确认刺鳅染色体组中最大的一对中部着丝粒染色体为X、Y性染色体，两者不仅已经出现结构异染色质分布上的不同，同时在外部形态上也存在明显差异，识别特征鲜明，在光镜观察下无需显带即能清晰辨认性染色体。

Results Chromosomal imbalances were demonstrated in 6 cases. Overrepresentation of genetic material was detected in 4 cases on Chromosome 2p and 10q, and 3 cases on Chromosome l8q.

结果 10例中枢神经细胞瘤中，6例发现有染色体的失衡，主要表现为遗传物质在染色体2p(4、10)、10q(4/10)和18q(3/10)上的获得。

It also can be used as alternative antigen of newgeneration vaccine.In this experiment,we screen the major protective antigen hsp65 gene of MAP in order to developnew vaccine especially the DNA vaccine for the prevention of paratuberculosis disease.The hsp65 genewas amplified from MAP C-2 chromosomal DNA by using the PCR technique.We gained a hsp65 gene of 1 626bp.Then PCR product was cloned into pGEM-T vector by T-A clone technique and therecombinant clone was identified by plasmid size,enzyme digestion and PCR identification.The cloneplasmid of pGEM-T- hsp65 was successfully constructed.The nucleotide sequence and deduced aminoacid sequence ofclone gene was analyzed by DNASTAR software.The result indicated that the size ofhsp65 gene consist with M.paratuberculosis K-10 strain in GenBank and the sequential homogeneityreached 99.1%,the amino acid homogeneity reached 99.3%.The preceding analysis indicated that thehsp65 gene was very conservative in M.paratuberculosis.

为了研发预防副结核病的新型疫苗尤其是DNA疫苗及相关蛋白功能，本研究选择了MAP的主要保护性抗原Hsp65蛋白，以副结核分枝杆菌C-2株染色体DNA为模板，以hsp65基因的特异性引物进行PCR扩增，获得了1 626bp的hsp65基因，通过T-A克隆技术，将PCR产物克隆至pGEM-T Vector中，以质粒大小、酶切分析、PCR扩增及序列分析鉴定重组克隆，成功地构建出克隆质粒pGEM-T-hsp65，以DNASTAR软件分析了所克隆基因的核苷酸序列和推导的氨基酸序列，结果表明，所获得的hsp65基因与GenBank中MAPK-10株该基因核苷酸大小完全一致，两者核苷酸序列的同源性为99.1％，氨基酸序列的同源性为99.3％，表明该基因在副结核分枝杆菌中高度保守。

In addition,gene clusters relevant to diverse forms and other clusters by polyploidy at molecular level have been gradually found.Therefore,chromosomal and molecular characteristics suggest plastic genomes in fishes.

由于基因组的可塑性，鱼类的多倍化和物种间的自然杂交渐渗较易发生，从而对鱼类物种起源、群体间的遗传多样性作出了贡献。

A chromosomal segment of DNA that regulates the activity of the structural genes of an operon by interacting with a specific repressor.

DNA中的染色体元素DNA中的染色体，它是通过与一特殊的约束因子相互作用而控制遗传子结构基因的行为

The structure and function of nuclear scaffold and chromosomal scaffold is an important research field of cell biology.

核骨架和染色体骨架的结构与功能是细胞生物学的重要研究领域。

The structure and function of nuclear scaffold and chromosomal scaffold is an important research field of cell bi...

核骨架和染色体骨架的结构与功能是细胞生物学的重要研究领域。

Objective: To study the effects of sodium selenite (Na2SeO3) on chromosomal aberration in the bone marrow cells of mice.

目的 研究亚硒酸钠（Na2SeO3）对小鼠骨髓细胞染色体的致畸变作用。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。