查询词典 recombination

A mutant Escherichia coli strain in which the bolA gene was knocked out was generated by homozygous recombination method.

表明水稻OsBolA1蛋白主要在细胞核内发挥功能，可能作为转录调控因子起作用。

American molecular biologist Cohen, the United States biochemists Boyer will be completed with the cooperation of the two different gene splicing genes into bacteria composite Experimental and declared the first gene recombination technology patents.

美国分子生物学家科恩、美国生物化学家博耶合作完成了将两种不同基因拼接的复合基因引入细菌的实验，并申报了第一个基因重组技术专利。

And it is electrons bremsstrahlung and recombination excitation radiation of electron and ion at high pressure.

高压下以电子韧致辐射及电子与离子的复合激发为主要机理。

①Location of WD gene in Ch inese: Using pairwise linkage analysis and multipoint linkage analysis method, w e constructed a genetic map of DNA markers within D13q14.2-3 which refined the location of WD gene by restriction fragment length polymorphism and microsatellite polymorphism analysis;②Screen for mutations of WD gene in Chinese people: we detected the structure of 21 exons of WD ge ne in 45 patients from 39 pedigrees by PCR-SSCP(Single strand conformation poly morphism) and PCR-DNA sequencing technology, found a new mutation in exon 5 and nuclcotide sequence analysis showed it is a T insertion. We also conformed the Arg778Leu in exon 8, the highest frequence mutation point in Chinese people, wit h mutation rate 22.8%in total;③Carrier detection and presymptomatic diagnosi s of WD: Based on DNA recombination technology, we peformed successfully the gen e diagnosis in all individuals of 79 families with WD and built up a helpful spe cific enzyme cut method (PCR-Msp1) to detect the carrier and presympomatic patients in Chinese pe ople with WD.

①WD的基因定位研究：通过RFLP及微卫星多态性分析，应用两位点及多位点连锁软件，建立了中国人WD基因在D13q14.2-3区域的精细遗传连锁图谱，从而首次对中国人WD基因进行了精确定位；②WD基因突变研究：应用PCR-SSCP及DNA测序技术，对39个家系45名WD患者进行该致病基因的21个外显子突变筛选，发现WD基因5号外显子存在新的T插入突变，并证实中国人WD基因的突变热点为8号外显子，突变形式为Arg778Leu，其频率为22.8%；③WD的症状前诊断和杂合子检出：应用DNA重组技术对79个家系进行基因诊断，成功地进行了WD的症状前诊断和杂合子检出，并建立了WD的基因筛选的PCR-Msp 1酶切方法。

A new cataphoresis He-Ca+ laser was designed and made, and the stable output power of a hundred mW at 373.7nm recombination laser was obtained for a long operation time.

本文结合国家自然科学基金项目的研究内容，对高重复率脉冲放电钙离子激光动力学机制、工作特性和电泳效应进行了深入研究，设计制作了新型电泳式He-Ca+激光器，获得了百毫瓦功率钙离子373nm复合激光的稳定输出，为解决传统钙离子复合激光存在寿命短和放电不稳定等缺点提供了新途径。

According to the partial research work of a project supported by the NSFC, this paper made an investigation in detail on the dynamics, the performance and the cataphoresis effect of Ca+ recombination laser excited by high repetition rate pulsed discharge.

高频脉冲电泳式He-Ca+复合激光与传统的He-Ca+复合激光相比，具有避免阻挡光路、能够相对独立控制钙蒸气压强、维持长期稳定放电和较长寿命的特点，能同时输出几百毫瓦功率的近红外RM跃迁激光和近紫外的复合激光，在微电子技术、激光治疗和可调激光器泵浦源等方面具有广泛的应用前景。

A cataphoresis discharge tube of 7mm inner diameter and 38cm active length was made for the He-Sr+ laser. The recombination laser at 430.5nm and the R-M transition laser at 1.03μm were obtained with the modified Blumlein circuit by high-frequency longitudinal pulsed discharge. The laser components are concentrated on the 430.5nm wavelength.

设计制作了7mm内径和38cm有效激励长度的电泳式He-Sr+激光管，采用修饰Blumlein电路，通过纵向高重复率脉冲放电激励，实现了一价锶离子复合激光430.5nm和R-M跃迁激光1.03μm的同时振荡，其中复合激光占主要成分。

Transmission electron microscopy, electroluminescence, and cathodoluminescence measurements were performed to study the recombination mechanism of the InGaN QWs. It was found that there are different widths of quantum wells in TEM images.

在透射电子显微镜下可以发现量子阱的宽度不一致，电致发光谱发现了位于2.45eV的绿光发光峰和2.81eV处的蓝光发光峰。

Therefore, the technique of gene SOEing is a simple and effective method for gene recombination and mutation in vitro, which is significant to study structurally and functional characteristic of gene in high plants.

因此，重叠PCR技术是一种简单有效的进行体外基因重组和突变的方法，对于研究高等植物功能基因的结构功能特性具有重要的意义。

In OTFEL, injection, transport and recombination of charge carrier are key factors determining luminescent intensity and efficiency.

为了深入研究它们的每一个过程，我们分别在三种不同结构的器件上，侧重研究其中某个过程对发光强度及发光效率的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。