胚胎

胚胎的性别早在受精时就决定了。

The sex of the embryo is predetermined at fertilization .

8星期大的胚胎只有一英寸长。

An eight-week-old embryo is only an inch long

许多人反对用胚胎做实验。

Many people object to experimentation on embryos .

胚胎在羊膜腔中发育。

The embryo lives in the amniotic cavity .

胚胎研究是个容易引起激烈争论的问题。

Embryo research is an emotive issue .

胚胎发育似乎主要受制于少数主导基因。

Embryonic development seems to be controlled principally by a very small number of master genes .

如果这种基因存在，人类胚胎就会发育为男性。

If the gene is present , a human embryo will go on to develop as a male .

这一观察结果提示,有效的胚胎学习可以给传递有关孩子神经能力的信号。

This observation hints that effective embryonic learning could signal neurological strengths of children to parents ．

长期的饥饿和衰老可以导致胚胎发生能力的复壮。

Prolonged starvation and aging might lead to rejuvenation of embryogenic potential .

在胚胎发生期间经历了深刻的代谢变化。

Impressive metabolic alternations have been undergone during embryogenesis .

他们这样做是为了挑选最健康的胚胎用于移植。

They do this so they can select the healthiest embryo1 for transplantation .

试管婴儿诊所使用一种名为胚胎镜的技术，为受精的胚胎拍照。

IVF clinics - using a technique called Embryoscope - take images of fertilised embryos2 .

从受孕大约10天后的中期妊娠胚胎中提取

DNA was extracted from fetuses at mid-gestation , about 10 days past conception . DNA

通常有以下几种组织学构成：精原细胞瘤、胚胎癌、畸胎瘤、绒毛膜癌

They often have several histologic components : seminoma , embryonal carcinoma , teratoma , choriocarcinoma .

鸡蛋的外壳是不透水的，防止胚胎失水

The outer covering of the egg is waterproofed to prevent the embryo from drying out .

增加与生物安全相关规定为了保障生物安全，刑法修正案规定了针对将基因编辑、克隆的人类胚胎植入人体或者动物体内等违法行为的处罚，相关违法人员最高刑期可达7年。

To safeguard biosecurity , the law stipulates penalties for illegally implanting gene-edited or cloned human embryos .

然后我们就有了两个有着一模一样dna的胚胎。

Then we would have two eggs with the same DNA .

建立全套式PCR对牛胚胎性别鉴定的方法

Sex Identification of Bovine Embryo with a Set of PCR Methods

通过结果分析可知：体外培养胚胎中的H2O2含量从2-细胞早期到2-细胞晚期之间是逐渐增加的，然而从2-细胞晚期以后又逐渐下降；

However , H_2O_2 levels decrease gradually after late 2-cell stage .

铅对胚胎大鼠海马神经元G蛋白mRNA表达的影响

The Effect of Lead Exposure on mRNA Expression of G-proteins in Fetal Rat Hippocampus

应用PCR技术鉴定牛早期胚胎性别的研究

Sex Determination of Early Cattle Embryos with PCR Techniques

目的探讨环境污染物对着床前小鼠胚胎发育的直接影响，以及对基因组DNA甲基化的影响。

Objective To investigate the effect of environmental contaminants on development rate and DNA methyltransferase activity of preimplantation embryos .

应用LOGISTIC回归分析山羊胚胎移植妊娠率影响因素的研究

Analysis of factors affecting the pregnancy rate of goat embryo transfer by Logistic regression

Leptin受体在人胚胎皮肤附件发育过程中的表达特征

Characteristics of expression of Leptin receptor in human fetal skin appendage

Notch与Ras/MAPK信号通路在胚胎发育及肿瘤发生中的串话

Crosstalk Between Notch and Ras / MAPK Pathways in Embryonic Development and Tumorigenesis

目的：探索Rh新生儿溶血病和脆性X综合征两种单基因疾病在胚胎植入前的遗传学检测方法。

Objective : To develop the methods of preimplantation genetic diagnosis for two kinds of monogenic diseases .

畸胎癌中除含有分化的三胚层来源的组织外，还含有未分化的胚胎癌细胞（Embryoniccarcinomacells，EC）。

Except for the differentiated cells derived from three germ layers , teratocarcinoma also have undifferentiated embryonic carcinoma cells ( EC ) .

可以利用核移植技术建立核移植胚胎干细胞（nucleartransferembryonicstemcells.ntES）系，利用胚胎干细胞制备嵌合体动物，对胚胎干细胞进行基因改造等研究。

Nucleus transplantation technology could make nuclear transfer embryonic stem cell lines . Using ES cells could make chimera animals and modify genes , etc.

在5对未见报道用于性别鉴定的微卫星DNA多态性引物中，筛选出2对具有性别特异性的引物，经过进一步的研究可能用于胚胎性别鉴定及品种鉴定。

In 5 pairs of microsatellite polymorphic DNA primers used in this research , 2 pairs being tested sex specific showed potential usability for bovine embryo sexing .

GMP玻璃化法冻存人早期胚胎的临床应用

Clinical application of GMP vitrification of human early embryos