查询词典 chromosomal

Methods Systematic observations of clinical manifestations,hematopoietic function,chromosomal aberrations,immunologic neurological,endocrinological,reproductive functions,eye examination,asssay of HPRT gene mutation and detection of oncogenes were performed in the past six years.

持续6年对患者进行临床表现、造血功能、染色体畸变、免疫功能、神经系统、内分泌功能、生殖功能及眼晶体等检查和HPRT基因突变及某些癌基因检测。

As the increase of the concentration of magnesium sulfate and time, the micronucleus and the chromosomal aberration of Vicia faba root tip cells increased first and then decreased.

且随着硫酸镁溶液浓度的升高和处理时间的延长，蚕豆根尖细胞的微核率和染色体畸变率均呈先上升后下降的趋势。

Drug sensitive test and three-dimensional test220 strains of Pa were isolated from hospitalized patients between 2003 and 2007. K-B method was used to tested the susceptibility of 10 different antibiotics. IRPa was screened by testing the minimal inhibitory concentration of imipemem by using agar diluiion method.The susceptibility of these IRPa to the antibiotics was analysised. Three-dimensional test was used to identify the different kinds of beta lactamases from 220 strains of Pa.2.Carbarpenems hydrolytic enzyme genes and oprD2 gene were detectedamong the selected IRPa strains, PCR method was performed to detect carbapenemase genes which included GES、KPC、SPM、VIM、IMP、GIM gene and the oprD2 gene;Multiplex PCR were used to detect OXA genes and plasmid-mediated AmpC beta lactamase genes; The expression of the chromosomal AmpC beta lactamases and oprD2 genes in IRPa strains were analyzed by Real-time PCR.3.Identification and characterization of integronsIntegrase gene was detected by PCR, and the classification of integrons was performed by using restriction fragment length polymorphism.PCR was performed to detect the qacE△1-sull gene,and the gene cassetes which are located at variable region of integrons in the strains were detected to be positive.

方法1、药敏实验和三维实验收集2003～2007年临床分离的220株Pa，对这些菌株采用K-B法测定10种临床常用抗生素的药敏情况，同时采用琼脂稀释法检测亚胺培南的最低抑菌浓度(Minimal inhibitory concentration，MIC)，筛选出对亚胺培南耐药的铜绿假单胞菌，并分析其对其它抗生素的药物敏感率；采用三维实验的方法分析220株Pa产β内酰胺酶的类型。2、碳青霉烯类水解酶和oprD2蛋白的检测针对鉴定的IRPa菌株，采用普通PCR方法检测具有碳青霉烯水解作用的β内酰胺酶耐药基因(GES、KPC、SPM、VIM、IMP、GIM基因)和oprD2基因，采用多重PCR的方法检测OXA型基因和质粒携带的AmpC酶基因，用荧光定量RT-PCR方法检测oprD2蛋白基因表达情况；同时对产AmpC酶的Pa(25株，含IMP耐药和敏感株)用RT-PCR方法检测AmpC酶基因的表达量情况。3。

Fluorescence in situ hybridization and immunofluorescence assay revealed that the DNA sequences associated with the heterochromatic knobs are highly divergent and heavily methylated compared with the sequences in the corresponding X chromosomal domains.

而通过NDA的分子原位杂交，专家在番木瓜的雄性区域发现了该区域有4个特异的异染色质疖，免疫荧光分析则揭示出这个区域与X染色体的相应区域发生了较大的分化，具有高度的甲基化。

1Unequal number of univalents with decreased degree of synapsis and lagging chromosomes occurred in meiosis.The abnormal chromosomal behavior correlated with heterogenicity gave rise to unequal allocation of homogenous chromosomes to daughter cells and resulted in the deletion of functional chromosoms,thus led to the occurence of a certion proportion of aborted pollens.(2)The interaction between genetic imbalance and such environmental factors as temperature,etc.,further drew forth physiological and even structrural imbalance,with abnormal development of pollen mother cells and tapetal cells,and consequently resulted in no or very few production of pollens.The difference in the interaction between environment and genotype reflected on the unstability of pollen abortion in different years.

1在减数分裂中有数目不等的联合程度较差的单价体以及落后染色体出现，这种与异质性相关的染色体行为异常，导致同源染色体向子细胞的不均衡分配，造成具功能染色体的缺失，从而引起毛白杨一定比率的败育花粉的产生；(2)遗传上的不平衡与温度等环境因子相互作用，进一步引发毛白杨生理乃至结构上的不平衡，花粉母细胞和绒毡层细胞发育异常，从而造成不产粉或产粉较少；环境与基因型互作的差异性导致了花粉败育的年度不稳定性。

Results indicated that suppression of malignancy was observed in the hybrid cells, they became differentiated morphologically and functionally by:(1) changes in histochemical staining, nucleus-cytoplasm in ratio, and increase in cell size and nucleal heterochromation, but decrese in cell surface microvilli and number of nucleoli;(2) decrease of growth rate, mitotic index and DNA synthesis rate;(3) loss of the ability to growth in soft agar medium, and non-tumorigenic under heterotransplantation to nude mice;(4) reduction of chromosome number mainly of rat derivative and decrease in chromosomal aberration rate.

实验结果表明：（1）杂交细胞出现瘤细胞与网织红细胞杂交同样的表型逆转及去恶性化特征，主要表现在细胞体积增大、核质比例减小；DNA合同速率降低、分裂指数下降，细胞生长显著减慢；在软琼脂中不形成集落，在裸鼠体内失去了长瘤能力。

Molecular phylogeny of the Genus Hypochaeris using internal transcribed spacers of nuclear rDNA : inference for chromosomal evolution.

葛颂、 Schaal BA、洪德元：用核糖体DNA的ITS序列探讨裂叶沙参的系统位置-兼论ITS片段在沙参属系统学研究中的价值，植物分类学报 1997；35 (5)： 385-395

Objective: To study the source of the separation of our hospitals to methicillin-resistant Staphylococcus aureus in molecular epidemiology of the characteristics, identify MRSA clinical isolates in our country, investigate the distribution characteristics of staphylococcal chromosomal cassette mec typing of MRSA and detect the Panton-Valentine leukocidin virulence gene of MRSA.

目的：研究我国医院来源分离到的耐甲氧西林金黄色葡萄球菌的分子流行病学特征，鉴定我国临床分离的MRSA，分析MRSA葡萄球菌染色体mec盒基因型，检测MRSA的PVL毒力基因。

The purpose was to discuss the chromosomal variation level of Lilium spp. and provide theoretical basis for breeding new species.

［目的］探讨香水百合染色体的变异程度，为引种驯化和杂交育种提供依据。

WebArray incorporates these packages and provides a user-friendly interface for accessing a wide range of key functions of limma and others, such as spot quality weight, background correction, graphical plotting, normalization, linear modeling, empirical bayes statistical analysis, false discovery rate estimation, chromosomal mapping for genome comparison.

WebArray合并了这些包并提供了一个用户友好的界面进行访问limma和其他的各种不同的关键函数，例如点质量权重，背景校正，图形绘制，归一化，线性建模，经验贝叶斯统计分析，错误发现率评估，基因组比较的染色体mapping。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐