但是制造他们是很困难的，而且需要使用胚胎或者是克隆技术。
But they are difficult to make and require the use of an embryo or cloning technology.
除了避免某些特别的状况，这种技术也可以用来选择那些可能带有与父母相同的疾病或残疾，比如耳聋，的胚胎。
Instead of avoiding some conditions, the technique also may have been used to select an embryo likely to have the same disease or disability, such as deafness, that affects the parents.
在生育门诊，诱导多能干细胞能使家长选择符合他们要求的胚胎，而在饱受争议的辅助生育技术下，这么做并不容易。
In fertility clinics, iPS cells could enable prospective parents to choose embryos for desired traits more easily than they can with conventional assisted-reproduction technologies.
萨瓦奇先前已经将五个冰冻的胚胎留在了诊所里，这么做是出于她可能还会再要一个孩子的考虑，她已经有了三个孩子了，其中一个就是通过试管婴儿技术降生的。
Savage had previously left five frozen embryos at the clinic thinking that one day she would want another child to add to the three she already has, one through in-vitro fertilisation.
这两种技术，都可避免皮肤细胞转化为胚胎多能干细胞的这个初始阶段，在这个阶段里可能会使病人受到患上癌症的风险。
Both techniques avoid the initial step of converting skin cells into embryo-like pluripotent cells - a technique which poses a possible cancer risk.
新的胚胎筛检技术称为基因组杂交比较，允许医生从几天大的胚胎上提取细胞。
The new screening tecnique, called comparative genomic hybridisation, allows doctors to remove cells from an embryo when it is a few days old.
PGD技术通过对授精3天后的胚胎——由6个细胞组成——进行实验室检测，以判断它是否带有特别的基因疾病。
PGD is a technique whereby a three-day-old embryo, consisting of about six cells, is tested in a lab to see if it carries a particular genetic disease.
检查胚胎疾病的实验室技术即将用来定制婴儿。
Laboratory Techniques That Screen for Diseases in Embryos Are Now Being Offered to Create Designer children.
11月，马萨诸塞州先进细胞技术公司同意把胚胎干细胞应用于治疗斯特格病变黄斑营养不良的临床实验。这种疾病可以破坏儿童的视网膜细胞。
In November Advanced cell Technology, of Massachusetts, won approval for the trial of a treatment for Stargardt's macular dystrophy, a disease that destroys retinal cells in children.
同时，用于研究和操控基因表达的现代生物学技术为我们提供了从分子水平研究胚胎病理学的工具。
Modern techniques for the study and manipulation of gene expression provide us with the tools to study the molecular pathology of the embryo.
另外一种较为复杂的技术，则是把胚胎细胞培养成各式各样的细胞种类及组织。
Another, more complex, technique takes embryo cells and develops them into a wide variety of cell types and tissues.
Mann的小组，2010年关于ART和实验胚胎学的工作，用老鼠检测在跟随超排卵技术过程中四个基因的变化。
Mann's group, for the 2010 work on ART and epigenetics, used mice to examine changes on four genes following a superovulation procedure.
大约28%的人说他们也同样愿意为医学捐赠胚胎用于提高克隆技术。
About 28 per cent said they would be similarly willing to donate embryos to improve cloning techniques for medical science.
目的用胚胎移植技术评价醋酸铅对啮齿类动物的生殖毒性。
Objective Evaluate the reproduction toxicity of lead acetate to rodent with the embryos transplant technology.
为了解答这些问题，研究人员运用活细胞成像技术到人胚胎干细胞和鼠胚胎干细胞最初的分离阶段。
To answer these questions, the researchers applied live-cell imaging to the earliest phase of dissociation in human and mouse ES cells.
方法：利用无血清培养和细胞克隆培养技术，从胚胎大鼠海马、纹状体、脊髓等区分离神经干细胞，进行体外扩增培养、传代、贴壁分化观察。
Methods: The advantage of serum free and clone culturing technology was performed to isolate, culture and passage neural stem cells from embryonic rat hippocampus, striatum and spinal cord.
新技术使重组技术得到一个飞跃，同样也给那些反对人类胚胎研究者提供一新的替代技术。
While the latest advances have spurred a rush to improve the reprogramming technique, they have also given fresh ammunition to those who oppose research on human embryos, an alternative technique.
方法：采用全胚胎体外培养技术。
方法采用了胚胎移植，目的基因检测，胚胎冷冻等技术。
Methods Techniques such as embryonic transplantation, genotype and embryo cryopreservation were applied.
双胞胎、三胞胎以及多胞胎的各种缺陷的发生风险远较借由生殖技术获得的相应胚胎的发生风险高。
The danger of defects from twin, triplet, and other multiple births is far greater than any risk posed by the fertility treatments themselves.
其技术主要包括胚胎活检、聚合酶链反应及荧光原位杂交。
The basic techniques currently used involve embryo biopsy, the polymerase chain reaction and fluorescence in situ hybridization.
同时，从种牛选择，冻精制作与保存、选配方法、建立冷冻胚胎库等方面提出了具体技术措施。
Meantime, the concrete measures were elicited for bull selection, making and preservation of frozen semen, mating methods and frozen embryo pool establishment etc.
而目前其他的干细胞技术需要破坏胚胎组织。
Current stem cell technologies require the embryo's destruction.
胚胎移植技术用于检测化学物胚胎毒性，排除母体因素的干扰，是一重要研究手段。
The embryos transplant technology is a valuable methods to detect the embryo toxicity of chemicals, and in this way the effect of the matrix can be avoided.
胚胎移植技术用于检测化学物胚胎毒性，排除母体因素的干扰，是一重要研究手段。
The embryos transplant technology is a valuable methods to detect the embryo toxicity of chemicals, and in this way the effect of the matrix can be avoided.
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