胚胎发育

In the development of human foetus, liver is an important haemopoietic organ.

在人的胚胎发育中，肝脏是一个重要的造血器管。

I. Objective and purpose Glycoproteins and glycolipids on cell surface contain fucose in the glycolinkage, which are associated with embryonic development, organ formation, tumor development and tumor infiltration, such as Lewis blood-type antigens-LeY, LeX, sLeX.

一。目的和意义许多细胞表面糖蛋白或糖脂是含有岩藻糖(Fucose， Fuc)化的糖链，参与胚胎发育、组织器官形成，并且与肿瘤的生长、浸润有关，如LeY、LeX、sLeX等Lewis系血型抗原分子。

Part I Cbx4 promotes SUMO modification of DNA methyltransferase 3a Dnmt3a is one of de novo DNA methyltransferases in mammals, which are responsible for the generation of somatic methylation patterns during embryogenesis and gametogenesis.

第一部分：Cbx4促进DNA甲基转移酶3a的SUMO化修饰 Dnmt3a是哺乳动物中的一个起始性甲基转移酶，负责在胚胎发育和配子发生过程中创建各类细胞的甲基化谱式。

In addition, germ-line epimutations of other tumor suppressor genes, such as MSH2 and BRCA1, have also been reported, demonstrating that epimutations might arise in the germ-line (during gametogenesis or early embryonic development).

随后，关于其他抑癌基因MSH2与BRCA1等的胚系异常甲基化也陆续有报道。这提示，表观突变也可以起源于胚系（生殖细胞形成期或胚胎发育早期），从而造成全身细胞广泛的基因转录沉默。

Organs have different functions in the body all comes from the same germ cell in the process of embryonic development.

在胚胎发育的过程里，体内各种具有不同功能的器官，都是来自於相同来源的细胞。

Gravid mice were exposed to 100,250 or 500mg/m 3 of YF 1 germicide for 5 days successively for studying teratogenic toxicity.

妊娠小鼠分别以 10 0、2 5 0、5 0 0mg/m3 浓度连续吸入染毒 5d ，于妊娠第 18d处死孕鼠，分析孕鼠及子鼠胚胎发育指标；检查有无外观、内脏和骨骼畸形。

Methods Granulose cells were collected from a total of 39 women receiving in vitro fertilization-embryo transplantation.

目的 探讨抑制素B在颗粒细胞的表达与卵巢反应、卵子成熟及胚胎发育之间的关系。

Adding ouiduct epithelial cell or granulose cell to CR1aa or TCM-199co-culture, the developmental abilities can be significantly increased.

以CR1aa和TCM-199作为基础液时，输卵管上皮细胞和颗粒细胞共培养均能显著提高延边黄牛体细胞克隆胚胎发育率。

The results showed that high incubation temperature caused early hatched chickens, and low hatchability and abnormal newly hatched chickens increased.

试验结果显示，高温会加速胚胎发育且提早孵出时间，并导致孵化率下降以及雏鸡异常数增加。

In the tissues of mature fishes, hira mRNA was strongly expressed in ovary and liver, while weakly in brain, heart, spleen and kidney, hira mRNA was not detected in testis and muscle.

本论文同时采用RT-PCR方法分析了彩鲫Cahira在不同组织中和胚胎发育不同阶段中的表达特征。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。