1、

Five transgenic positive mice were obtained through pronuclear microinjection.

通过原核注射,获得5只转基因阳性鼠;

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2、

The basic reliable methods available to produce transgenic animal such as pronuclear microinjection has limited application by low efficiency and mosaic integration into the genome.

由于生产转基因动物的基本方法如原核注射法等普遍存在外源基因整合的低效性和随机性等问题,因而在应用中受到很大制约。

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4、

To the great extent, the study and application of transgenic animal are restricted by the inherent limitation of pronuclear microinjection.

显微注射技术本身固有的缺点在很大程度上限制了转基因动物的研究及应用。

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5、

Furthermore, with only a half dose of DNA in the current system, by the horizontal system under × 100 magnification both the survival rate of pronuclear embryos following microinjection and the integration frequency of exogenous DNA injected into embryos also increased.

此外,利用该系统还可在低倍镜下(×100)将DNA常规注射量减半注射,提高了原核胚注射后的成活率,其注射胚的外源基因整合率亦明显提高。

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