卵裂

This process of cell division or cleavage in the zygote is called segmentation.

这种细胞的分裂或受精卵的分裂称为卵裂。

This site provides image materials on fish development, including time-lapse recordings illustrate the morphogenesis of zebrafish embryos, from early cleavage to organ rudiment formation, fish epidermal cell movies, 3-D films of zebrafish gastrulation, and much more.

该网站提供有关鱼类发育的图像材料，包括阐明斑马鱼胚胎形态发生（从早期卵裂到器官初期形成）的时间间隔录象、鱼类表皮细胞影片、斑马鱼原肠胚形成的三维影片，等等。

Completion of the synthesis involved displacement of the remaining alcohol through a three-step, telescoped sequence featuring an efficient cleavage of an aryl mesylate, and a practical method for introduction of the isobutyric acid fragment.

完成剩余的位移所涉及合成酒精通过三个步骤不胜顺序展出了高效率的卵裂甲磺酸芳、而实际的方法引入异丁酸片段。

Furthermore, we investigated the dynamic characteristics of lamin B by immunofluorescence during the nuclear envelope reconstruction of PM-embryos.

本研究表明：在去除抑制剂3h后未能形成核膜的胚胎进一步卵裂，而形成核膜的PM胚胎培养24h未见进一步发育。

Results Both EDS-40 and EFS-40 solutions had vitrifying effects. The survival rates of EFS-40, EDS-40 and control group were 69.6%, 82.14% and 86.78% respectively; the merogenic rates of EFS-40, EDS-40 and control groups were 54.4%, 66.96% and 80.99% respectively.

结果 两种玻璃化溶液能达到玻璃化效果；EFS-40、EDS-40及对照组冷冻复温后的存活率分别为：82.14%、86.78%、69.6%；EFS-40、EDS-40及对照组冻胚的卵裂率分别为：66%、96%、80.99%、54.4%。

The polyspermy rate was significantly decreased when the semen samples were stored for longer (3 days). Some cleavage embryos were collected to identify their sexes in 3-4 days after in vitro fertilization. The ratio of male embryos, produced from the BTS semens stored for 1 and 3 days, were 60 % and 41 %, respectively, and 35 % and 48 % in the MIII semens.

使用不同稀释液，保存1与3日之精液进行体外受精，在培养3 - 4日后收集卵裂胚进行性别鉴定，在保存1日与3日之稀释液BTS组，雄胚性比率分别为60 %与41 %；在稀释液MIII组，保存1日与3日之雄性比率分别为35 %与48 %。

Experiment Ⅴ: Mouse polyploid embryos were produced by electrofusing 2-cell blastomeres successionally.

实验六、通过2-细胞卵裂球交换制作2n／4n嵌合小鼠胚胎，对这种胚胎的发育能力进行了评价。

Then we compared cleavage rate and blastocyst rate among different groups. After that we evaluated the quality of blastocysts by using ICM/TE (Inner cell mass/Trophectoderm cells) ratio via staining with propidium iodide and Hoechest333258, and analyzed the level of genome methylation and histone acetylation by immunofluorescence.

比较各组受精卵的卵裂率和囊胚发育率；并应用碘化丙啶和Hoechest333258对囊胚进行染色，利用ICM/TE值评价各组胚胎体外发育的质量；同时将囊胚进行免疫荧光染色，观察其基因组甲基化和组蛋白乙酰化的水平。

Among the three kinds of activation methods, electrical activation was the best with (67.75±1.03)% oocytes cleavage rate and (13.52±2.05)% morulae rate. The best parameters for electrical activation was 130 V/mm and 80 μs.

电激活比乙醇激活、A23187激活有更高的卵裂率(67.75±1.03)%和桑椹胚率(13.52±2.05)%，且差异显著(P.05)，最佳激活参数为130V/mm、80μs、一次脉冲激活。

Methods Mouse endometrial epithelial cells were isolated and cultured,then it was cocultured with mouse embryos fertilized in vitro.

对小鼠子宫内膜上皮细胞进行分离、培养鉴定，然后与体外受精的小鼠胚胎进行共培养，观察共培养对小鼠胚胎卵裂率、孵化率以及囊胚期胚胎总细胞数的影响。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐