查询词典 polytene

Microdissection and cloning of DNA from a specific region of Drosophila melanogaster polytene Chromosomes［J］.

染色体微切割、微分离及微克隆技术在医学方面具有深远的意义［29］。

The main results and conclusions are as followings.1, The histone deacetylase inhibitors were used to feed the larve of the fly, and then the polytene chromosomes were observed under the microscope.

得到的主要结果和结论如下： 1，通过用去乙酰化酶抑制剂处理果蝇幼虫，观察果蝇多线染色体在热休克基因处的形态变化，发现去乙酰化酶抑制剂介导的乙酰化水平的升高可引起染色体结构的显著变化，推测乙酰化修饰不仅影响分子间的相互作用而且还可以影响染色体的高级结构。

Here, we show that Drosophila condensin II promotes disassembly of polytene structure into chromosomal components.

在这里，作者展示了果蝇凝聚蛋白II能够促进染色体组成中多聚结构的分解。

The polytene chromosomes found in the salivary gland cells are among the largest chromosomes known today.

唾液腺细胞中的多线染色体是目前已知的最大染色体之一。

Objective To improve the traditional preparation of the polytene chromosomes of blackflies and observe chromosomes abstracted.

目的 对传统蚋类唾腺多线染色体制备方法进行改进，以获得良好的制片效果。

The results indicated that the histone deacetylase inhibitors had effects on the morphology of the polytene chromosomes.

2，利用RT-PCR技术，对去乙酰化酶抑制剂处理后的果蝇的热休克基因的表达水平进行检测，结果表明经组蛋白去乙酰化酶抑制剂处理后的果蝇幼虫，其热休克基因的表达高于基础水平，也就是说去乙酰化酶抑制剂诱导了热休克基因的表达。

Polytene chromosome structure is a characteristic of some polyploid cells where several to thousands of chromatids are closely associated with perfect alignment of homologous DNA sequences.

多染色体结构是多倍体细胞的特征。在多倍体细胞中，有几个至几千个染色单体与相对应的DNA序列精确结合。

The fruit fly Drosophila melanogaster is an important model organism in research fields of genetics and developmental biology due to the advantages of easy to breed and to get enough embryos in the laboratory, short life cycle, having large polytene chromosomes, and etc. It has made great contributions to the development of modern life science.

果蝇由于具有容易饲养、产卵多、生命周期短以及具有粗大的多线染色体而便于进行基因定位等优点，已成为遗传学和发育生物学等研究领域中重要的模式生物之一，对现代生命科学的发展作出了突出的贡献。

After removing DNA, histones and part of NHPs, we found that actin and tropomyosin exist in the polytene chromosomal scafiold by immunofluorescence experiments.

对去除DNA、组蛋白和大部分非组蛋白的果蝇多线染色体的免疫荧光实验表明，肌动蛋白和原肌球蛋白存在于果蝇多线染色体骨架上。

By the method of SDS-PAGE, the main proteins of nuclear, matrix in salivary gland were proteins of 67kd, 66kd, 43kd, 38kd and 35kd Comparing the NHP composition of the nuclear matrix to that of the polytene chromosome, it can be seen that the nuclear matrix and the polytene chromosome shared many common NHP components, such as 43kd, 38kd and 35kd proteins.

通过SDS-聚丙烯酰胺凝胶电泳看到，果蝇唾腺细胞核基质的主要蛋白成份为67kd、66kd、43kd、38kd及35kd等多肽。与多线染色体骨架的蛋白成份比较，发现它们共同具有43kd、38kd及35kd等蛋白质。

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。