查询词典 germ cells

The common features of imprinted genes are, clustering of multiple imprinted genes in one chromosomal region (around 80%), conservation of imprinting among eutherian mammals, asynchrony of DNA replication of imprinted genes, temporal and spatial regulation of expression of imprinted genes, coding for untranslated RNAs as well as proteins, antisense transcripts may regulate expression of imprinted genes. Once established, the imprinting pattern is stably transmitted through cell division but reset in germ cells of the fetal gonads.

约80%的印记基因呈串出现在染色体上；在哺乳动物品种之间，印记基因具有较高的保守性；印记基因的复制通常表现为不同时性；一些印记基因具有印记遗传的时空性；少数印记基因只转录为mRNA而不翻译成蛋白质；印记基因的反意链通常表达，表达产生具有调节印记基因的作用。

Gametogenesis in many kinds of insects, lower vertebrate animals and hibernating animals as well as scrotal mammals depends on a suitable low-temperature condition to generate germ cells and acquire maturation competence thereafter.

通过漫长的进化历程，不同的生物以不同的外界因素作为主要的信息，结合自身内在的节律，决定生殖细胞的发生、成熟和繁殖后代的时序，从而形成一定的生殖周期。

OBJECTIVED: To investigate in vitro and vivo biological characteristics of primary culture of human primordial germ cells on fibroblast feeder layer of human endometrium.

目的：观察接种于人子宫内膜成纤维细胞饲养层上原代培养的人原始生殖细胞在体内外的生物学特性。

In the period of co-culture,morphological changes of the germ cells, such as differentiations from s...

这一方法的建立为山羊精子发生过程的研究和应用打下了基础。

In most multicellular eukaryotes, telomerase is only active in germ cells.

在大多数多细胞真核生物中，端粒只在生殖细胞中有活性。

Bcl-2 and Bax regulation of apoptosis in germ cells during prenatal oogenesis in the mouse embryo.

其可能的原因是，由于 bcl-2基因免疫后，内源性 bcl-2被中和了一部分，打破了原先的动态平衡。

Objective To research on the proliferation and differentiation in vitro of primordial germ cells.

目的探讨小鼠原始生殖细胞的体外增殖与分化。

Isolation, culture and transgene of the chicken primordial germ cells will be processed in this research.

本研究将完成鸡原始生殖细胞的分离、培养及转基因的实验研究。

Here we show that germ cells can be transplanted between two different salmonid species, with the subsequent production of xenogenic, donor-derived offspring.

精子移植的一项新应用有可能被用来恢复濒危的大麻哈鱼的种群数量，以及用于有重要商业价值的鱼类的生产。

In the examination of immunofluorescence using the polyclonal antisera against centrin to detect the expression of centrins in the rat male germ cells, it was found that the fluorescent centrin was localized on centrioles juxtanuclear position in the early round spermatid stage.

用制备的Centrin多克隆抗体，对大鼠生精细胞进行免疫荧光染色，可见呈荧光的Centrin蛋白定位于细胞核近旁的中心粒上。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。