染色质

Using electronic microscope we not only observed the change of apoptotic cell chromatin such as chromatin condensing and margining but also watched the change of mitochondrias.

本实验通过电镜观察到凋亡细胞染色质聚集、趋边等表现，同时也观察到线粒体的改变。

Normal polygonal squamous metaplastic cells with round to oval nuclei and bland chromatin pattern.

伴有圆形或卵圆形细胞核、染色质疏松的正常多边形的鳞化细胞。

Recent work in Arabidopsis demonstrates the molecular basis of this memory of winter: vernalization causes changes in the chromatin strcture of a flowering repressor gene, FLOWERING LOCUS, that switch this gene into a repressed state that is mitotically stable.

最近对拟南芥的研究显示了植物记忆冬季的分子基础：促进成熟促使一个开花抑制基因（FLOWERING LOCUS C，FLC）的染色质结构的改变，这种改变使这个基因从抑制状态转为有丝分裂稳定。

Recently, a variety of regulatory proteins including DNA methyltransferases, methyl-CpG binding proteins, histone-modifying enzymes, chromatin remodeling factors, and their multimolecular complexes have been identified.

最近，包括DNA转甲基酶，CpG甲基化结合蛋白质，组蛋白修饰酶，染色质重构因子，和它们的多分子复合物等各种调控蛋白质被识别。

All cells were generally smaller and occasionally spindled, the chromatin detail was attenuated, and nucleoli were more prominent.

所有的细胞都稍小，偶见梭形，染色质不清，核仁突出。

Yantai Normal College,264025,ChinaABSTRACT Most epithelial nuclei of Nuttallia olivacea are elliptic in shape and the chromatin is filiform.Most nuclei of connective tissue are round and have Feulgen positive granules.

摘 要 紫彩血蛤的鳃上皮细胞核多为椭圆形，核内染色质呈丝状；结缔组织细胞的核多为圆形，部分核内有块状Feulgen阳性颗粒。

Here, similarities between archaebacteria and eukarykaryotic otic cells in many aspacts including DNA duplication, transcription, translation and histones, chromatin, proteasome were introduced. Finally, the evolutionary position of archaebacteria and their significance to onery gin of the eukaryotic cells were discussed.

结合国际上对原细菌，尤其是它与真核细胞在许多方面（包括DNA复制、转录和翻译整个中心法则，组蛋白、染色质及蛋白酶复合体等）密切的亲缘关系的研究结果，对原细菌的进化地位及其对揭示真核细胞的起源进化问题的意义进行了探讨。

There appeared prominent signals on pericentric regions of all the other chromosomes besides chromosome 4. The signals were strong on most of the chromosomes and weak only on one chromosome pair.

这一克隆除在第4染色体近着丝粒区显示明显的信号外，其它染色体的近着丝粒区同样具有信号，多数染色体为强信号，仅1对染色体信号较弱，还有3对染色体具有像着丝粒两侧异染色质块(pericentric heterochromatin block)的信号，中间有一个缢痕。

Compared the similarity and difference of distribution of homologous fragments on X and Y, we suggested that the sex chromosomes of spiny eel have evolved from a pair of homologous ancestral chromosomes, and during the evolution, a pericentric inversion might have occurred on the original Y chromosome, and subsequently terminal regional duplication might have followed, eventually resulting in the differentiation and formation of X and Y chromosomes, then the recombinants between sex chromosomes were repressed, so the sex chromosomes could be inherited steadily.

根据X、Y染色体上同源片段的分布的相似和相异，我们对刺鳅性染色体的分化历程进行了推测，即：刺鳅的性染色体起源于一对原始的同源染色体，通过原Y染色体上的一个明显的臂间倒位，以及染色体末端的异染色质成分的扩增，导致原始Y染色体与X染色体在染色体结构上的分化，从而抑制了X、Y性染色体之间的遗传物质的重组交换，为性染色体的稳定遗传奠定了基础。

A few of intercellular electron-dense zones without typical synapse were found in the inner plexiform layer.

内核层内可见胞核各异的多种细胞，部分胞核常／异染色质例接近，核仁偏心分布。

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。