查询词典 chromosome

Each chromosome is made up of a tightly coiled strand, a molecule of DNA.

每一个染色体是由一个紧紧缠绕链，一个分子的DNA 。

Firstly, the recombinant engineering technology related vaccine preparation was set up, including: 1. the gene knock-out based on linear DNA target molecular in vivo; 2. the selection and counterselection technology of exogenous gene knock in definite site on chromosome; 3. the Gap-repair clone technology in vivo; 4. the recombination technology of single-chain DNA and the overlapping primer; 5. Set up the new selection and counterselection technology of neo-E.

本研究首先建立与疫苗制备相关的重组工程技术包括：①基于线型DNA打靶分子的大肠杆菌体内基因剔除技术，②选择与反选择外源基因定位敲入染色体上特定位点技术，③Gap-repair体内克隆技术，④单链DNA重组技术和重叠引物介导的DNA重组技术，⑤建立&抗生素-酶切位点&选择反选择技术新技术。

It is expected that hyg would be integrated stablely into the chromosome along with insert while spc/str would be lost during the second cross-over. Gene replacement through these two flanking sequences will result in the susceptibility of the transformants to phage φHAU3, which provides an enrichment for desired transformants by counterselection.

预期在携带有大插入片段的基因置换YAC分子进入野生型变铅青链霉菌后，YAC分子将通过1.4kb或1.0kb片段与染色体发生同源单交换，继而发生同源双交换，hyg连同大插入片段一起稳定地整合到染色体上，而spc／str丢失，从而导致菌株Hyg〓Str〓的表型。

A study on the chromosome numbers and isozymes of Crataegus plants in China.

文章题目中国山楂属植物染色体数目和同工酶的研究。

The micronucleus test has shown that cystamine has evident radioprotective effect at chromosome damage of blood lymphocyties and nucleated bone-marrow cells in irradiation rats. The Dose-Reduction Factor is 1.89 and 1.81 respectively.

微核测定法证明，胱胺对受照射大鼠的血液淋巴细胞和骨髓有核细胞染色体的辐射损伤有明显的保护作用，其剂量减低系数分别为1.89和1.81。

Quantitative chromosome mapping is a new developed molecular cytogenetic technique in recent years.

通过这样的定量分析，可以大大提高染色体识别的准确度。

Methods Conventional cytogenetic analysis of R band was used to detect the abnormalities of chromosome 7 in 410 acute leukemia patients.

方法采用R带常规显带技术进行染色体检查，对410例急性白血病患者的核型进行分析。

It is concluded that the value of routine cytogenetical and molecular biological analysis in diagnosis for potential CML cases,which mimicked ET as in this presentation,is very distinctive,and the importance is magnified by the recent availability of imatinib,a specific inhibitor of the bcr/abl tyrosine kinase produced by the Philadelphia chromosome.Every case of

对血小板明显增多的患者应及时进行Ph染色体及bcr/abl融合基因表达水平的检测，这对于ET及CML的诊断和鉴别诊断极为重要，以避免误诊、误治。

Cytogenetically, in the elderly AML group the incidence of good prognosis abnormalities including t(15;17), t(8;21), inv(16) was lower in elderly than in young patients (P＜0.05),and there was higher rate of poor prognosis abnormalities such as -5/5q-,-7/7q-,+8(P＞0.05), and Ph chromosome in elderly patients.

在老年组AML中，预后好的核型t(15；17)、t(8；21)及inv(16)发生率明显低于非老年组(P＜0.05)；预后差的核型-5/5q-、-7/7q-、+8及ALL中Ph染色体有较高发生率。

Among the fish which were cytogenetically studied, most of them do not possess any morphologically differentiated sex chromosomes. On the other hand, karyotypic analysis, chromosome binding, synaptonemal complex observation and comparative genomic hybridization show in few fish species, that there exist sex chromosomes which differentiated at different levels and types.

在进行过细胞遗传学研究的鱼类中，绝大部分没有发现异形性染色体，然而通过核型分析、染色体显带、联会复合体观察和比较基因组杂交等方法，发现在少部分鱼类中确实存在有异形分化的性染色体，并且分化程度高低不等，性别决定方式多种多样。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！