胚胎

On the other hand, in spite of the severely distorted axis, the FoxD5-overexpressed embryos displayed neither somite nor muscle defects. Based on these results, we speculate that FoxD5 plays different roles in axis and somite formation. During somitogenesis, FoxD5 functions in the maintenance of the anteroposterior polarity of somites, and in turn plays roles in proper formation of somites.

另一方面，观察过量表现FoxD5的胚胎，发现体节及肌肉发育没有明显异常，但体轴发育则产生严重畸形的性状；根据上述观察结果，推测FoxD5可能在体节及体轴发育上扮演不同角色：在体轴发育时，FoxD5则可能参与於胚胎轴向决定；而在体节中，FoxD5具有维持体节前后极性进而促使体节正常形成之功能。

Methods: Adult mice of Kunming variety were used as experiment animals. After judgement of oestrus, the oestrus period and oestrus stage were determined, and then those mouse were grouped depending on oestrus stage. The mice were dealed with diferrent dosage of PMSG and HCG to make them superovulation, afterwords were mated individually with the male mouse together at same cage. The embryoes were rinsed out and evaluated after 3.5 days when the plug had been seen. The transplant mice were born after the high-quality embryoes were transferred into the receptors mouse uterus at the same oestrus stage which was stimulated by mating with the male mouse which spermaduct had been ligated previously.

以昆明系小白鼠为实验动物，取性成熟个体，先进行发情鉴定，确定其发情周期及不同的阶段，然后按发情阶段分组，分别用不同剂量的孕马血清促性腺激素和人绒毛膜促性腺激素进行超排处理并与公鼠合笼，在见栓后的第3.5天冲胚，对所得胚胎进行鉴定；将质量较好的胚胎选出，移入同期发情并经结扎公鼠交配刺激后见栓的受体小鼠子宫内，得到移植小鼠。

Previous studies have demonstrated that primary spermatocyte can undergo meiotic divisions in MI oocytes and the resulting embryos can develop to term. However, the success rate is very poor.

已经证明初级精母细胞在显微融入MI卵母细胞后可以完成减数分裂并且产生的胚胎可以发育到期，只是发育率还非常低，作为一种形式的核移植，细胞周期的同步化处理对于胚胎的发育具有重要意义。

To estabish reproduction and breeding system in the spottdc deer;(2)To conduct frozen preservation of the spotted deer's semen and embryo;(3)To conduct development of artifical insemination and embryo transfer by demonstration in the spotted deer;(4)Study on nutrition requrement and the application of mordern nutrition modulation technique;(5)To estabish significant deseases testing and preventive systems;(6)To estabish adminastrative software of computer system.

项目简介：(1)建立梅花鹿良种繁育体系；(2)进行梅花鹿精液及胚胎的冷冻保存；(3)进行梅花鹿人工授精和胚胎移植技术的示范推广；(4)梅花鹿营养需要的研究和现代营养调控技术的应用；(5)建立梅花鹿重大疫病检测预防体系；6_建立梅花鹿计算机管理软件系统。

Using the shape of this embryonic ring was to be applied to measure the variation of the shape of the statolith. This is a useful tool to know the temperature factor during embryonic development by comparing with the shape of the hatchling's statolith.

而出生时期的平衡石形状可以藉由描绘最外层胚胎轮的轮廓来回推，根据出生时期平衡石的相对形状，可以作为推估胚胎所经历过的发育环境条件，可以帮忙了解初期生活史的相关环境条件。

The research also has more immediate clinical promise for efforts to turn embryonic stem cells into other types of tissue, to treat conditions such as diabetes and Parkinson's.

除了血液生产外，胚胎干细胞技术研究还有其他重要的临床意义。比如，胚胎干细胞还可以应用于糖尿病和帕金森症等多种病症的治疗。

Toxic effects of twelve pesticides（abamectin, endosulfan, diflubenzuron, danitol, tricyclazole, fluroxypyr, imazalil, tebuconazole, sulfapyridine, sulfamethoxazole, sulfamethazine and sulfadiazine）at low concentration（0.01mg·L-1） on the development of sea urchinembryos were investigated in this work, and the correlation between n-octanol/water partition coefficientand relative lethality rate was investigated.

为了研究低浓度下农药对海胆胚胎的毒性影响，以及正辛醇/水分配系数与致死率的关系，实验研究了12种常见农药（阿维菌素、硫丹、除虫脲、甲氰菊酯、三环唑、使它隆、抑霉唑、戊唑醇、磺胺吡啶、磺胺甲噁唑、磺胺二甲嘧啶和磺胺嘧啶）在低浓度（0.01mg.L-1）下对光棘球海胆胚胎发育的急性毒性影响。

The suspensor is developed fully at the stage of globular embryo and consists of 3 cells, which are degenerated later. The organization and development of the female flower and the type and synchrony of embryogenesis in Betulaceae are also discussed.

本文同时对雌花的结构和发育特点在桦木科各属中的异同、白桦胚胎发生类型及胚胎发育进程的同步性进行了讨论。

Endoscopic Describing the type of development of a plant embryo in which the inner cell formed by the first division of the zygote develops into the embryo, while the outer cell develops into the suspensor.

内向极性：该名词用来描述植物胚胎发育的一种形式，指受精卵第一次分裂形成的内细胞最后发育为胚胎，外细胞发育为胚柄。

In the Filicinophyta, Sphenophyta, and Lyophyta the embryo sporophyte produces a footlike structure that remains embedded in the tissues of the parent gametophyte plant, absorbing nutrients like the suspensor of higher plants.

在真蕨门 filicinophyta ，楔叶门 sphenophyta，和石松门 lycophyta 中，胚胎孢子体产生足状结构，仍然包裹于双亲配子体植物内。胚胎吸收营养的方式同高等植物从胚柄那样吸收营养一样。

It seems likely that Kraft will return with a better offer.

看起来卡夫要重新考虑一个更好的出价了。

But he'd rather burn off my feelers and watch me squirm.

可他却放任那个家伙对我为所欲为！