A independent life individuality is finally formated from singlecell ferti1ized egg throngh egg cleavage、morula stageA级黄色视频图片、blastocoele stage日韩国产精品你懂的在线播放、protogaster stage and orange etc, and concerned in major basal questions of development and gene expression.

單細(xì)胞的受精卵通過卵裂、桑椹胚99riav。com、囊胚242pao黄色视频、原腸胚及器官的發(fā)生等，最后形成一個(gè)能獨(dú)立生活的個(gè)體在线观看视频在线高清黄色网站，涉及發(fā)育和基因表達(dá)的許多基本問題www.青草草在线视频。

Tetraploid embryos could be produced by electrofusion at the stage of two-cell embryos, which could develop to blastocysts followed by fusion of cytoplasm and nucleus and cleavage in vitro. During the fusion of cytoplasm, the DNA methylation levels of the fused embryos are as high as these of two-cell diploid embryos in vivo Then the embryos are rapidly demethylated when the nucleus begin to fuse, resulting in the lowest DNA methylation levels when the nucleus are fused completely. After that, the DNA methylation levels of the fused embryos are gradually increased until the morula stage. However, whereas an asymmetric distribution of DNA methylation is established in vivo-derived blastocysts with a higher methylation level in the inner cell mass than that in the trophectoderm, we can not detect the asymmetric distribution in most in vitro-derived tetraploid blastocysts.

結(jié)果表明：利用電融合方法制備的小鼠四倍體胚胎在體外培養(yǎng)體系中經(jīng)歷細(xì)胞質(zhì)融合、細(xì)胞核融合及細(xì)胞繼續(xù)分裂發(fā)育直到囊胚期的過程综合图区欧美，在細(xì)胞質(zhì)融合的時(shí)候胚胎卵裂球同體內(nèi)體外培養(yǎng)二倍體胚胎一樣黄色av电影在线，呈現(xiàn)高度甲基化狀態(tài)；在細(xì)胞核開始融合的時(shí)候国产人看人碰人摸人澡，甲基化水平急速下降中国熟妇乱人伦A片久久，在細(xì)胞核完全融合的時(shí)候甲基化水平達(dá)到最低點(diǎn)；隨著胚胎繼續(xù)分裂h黄视频公司com，胚胎甲基化水平逐漸增加小草短视频，在桑葚胚期甲基化水平最高久久黄色网站视频写真；但是囊胚期四倍體胚胎內(nèi)細(xì)胞團(tuán)同滋養(yǎng)層細(xì)胞甲基化熒光信號(hào)沒有差別浮力导航，這與體內(nèi)體外培養(yǎng)二倍體囊胚內(nèi)細(xì)胞團(tuán)細(xì)胞甲基化熒光強(qiáng)度高于滋養(yǎng)層細(xì)胞甲基化熒光強(qiáng)度不同。

Tetraploid embryos could be produced by electrofusion at the stage of two-cell embryos, which could develop to blastocysts followed by fusion of cyto-plasm and nucleus and cleavage in vitro. During the fusion of cytoplasm, the DNA methylation levels of the fused embryos are as high as these of two-cell diploid embryos in vivo Then the embryos are rapidly demethylated when the nucleus begin to fuse, resulting in the lowest DNA methylation levels when the nucleus are fused completely. After that, the DNA methy-lation levels of the fused embryos are gradually increased until the morula stage. However, whereas an asymmetric distribu-tion of DNA methylation is established in vivo-derived blastocysts with a higher methylation level in the inner cell mass than that in the trophectoderm, we can not detect the asymmetric distribution in most in vitro-derived tetraploid blastocysts.

結(jié)果表明：利用電融合方法制備的小鼠四倍體胚胎在體外培養(yǎng)體系中經(jīng)歷細(xì)胞質(zhì)融合五月天色色网站、細(xì)胞核融合及細(xì)胞繼續(xù)分裂發(fā)育直到囊胚期的過程三级在线视频观看国产，在細(xì)胞質(zhì)融合的時(shí)候胚胎卵裂球同體內(nèi)體外培養(yǎng)二倍體胚胎一樣，呈現(xiàn)高度甲基化狀態(tài)人人妻人人艹；在細(xì)胞核開始融合的時(shí)候日韩欧美黄片在线一区，甲基化水平急速下降，在細(xì)胞核完全融合的時(shí)候甲基化水平達(dá)到最低點(diǎn)人人人摸摸人人人操；隨著胚胎繼續(xù)分裂日韩高清AV在线电影网，胚胎甲基化水平逐漸增加，在桑葚胚期甲基化水平最高AV在线播放八区；但是囊胚期四倍體胚胎內(nèi)細(xì)胞團(tuán)同滋養(yǎng)層細(xì)胞甲基化熒光信號(hào)沒有差別亚洲女妇在线观看视频，這與體內(nèi)體外培養(yǎng)二倍體囊胚內(nèi)細(xì)胞團(tuán)細(xì)胞甲基化熒光強(qiáng)度高于滋養(yǎng)層細(xì)胞甲基化熒光強(qiáng)度不同黄色视频在线免费观看国产盗摄。

Rabbit(Oryctolagus cuniculus domestica); mRNA differential display ; Morula stage embryo ; Zygotic gene

兔； mRNA差異顯示技術(shù)www...一级国产；桑葚胚6080毛片；合子型基因

Germ potential is established after conception in a totipotent zygote and retained subsequently during development in blastomers of morula , cells form the inner cell mass of blastocyst , epiblast and population of primordial germ cells .

種子潛能的確定是全能的受精卵形成之后，并且隨后在桑葚胚www.妓女网，胚泡內(nèi)層細(xì)胞欧美精品538在线视频，外胚層和原生殖細(xì)胞的發(fā)育過程中保留。

Aggregation of ES Cells with Mouse Morula state Embryos .

聚集的ES細(xì)胞與小鼠桑葚胚國(guó)家的胚胎欧美AA级黄片。

The results show that GSH can improve the development rate of morula or blastocyst (32.84%),and rate of blastocyst (26.35%).

這表明GSH對(duì)牛胚胎的發(fā)育有一定的保護(hù)和促進(jìn)作用色色色色色色AAAAAAA。

ACT wants to list on the registry five cell lines derived from the earlier, morula stage.

ACT希望將5種從更早期的桑椹胚階段胚胎中獲取的細(xì)胞系列入美國(guó)聯(lián)邦登記。

The survival rates of the early blastocyst and morula treated with 2.5M glycerol were 98.2% and 73.7% respectively.

小鼠桑椹胚和早期囊胚用2.5M甘油處理存活率分別為73.7％和98.2％国产永久在线更新。

All these 5 genes were specifically expressed in morula stage.

兔由母源型調(diào)控向合子型調(diào)控的過渡是在8～16細(xì)胞期開始的女同一区二区三区在线观看，在桑葚期開始表達(dá)的這些基因片段應(yīng)該是兔胚胎時(shí)期特異性基因。