| 1. | Unfortunately , only one of the embryos progressed to the six - cell stage , at which point it stopped dividing
可惜的是，只有一个胚胎发展到六个细胞的阶段，其后就不再分裂了。 |
| 2. | In mouse embryos , grp78 has been identified as early as the 2 - cell stage , and high levels were i - dentified at the blastocyst stage
有研究表明grp78在生物体发育过程出现在受精卵两个细胞阶段，并且在胚泡中已有较高的表达水平。 |
| 3. | By three days after injection , the number of embryos which had cleaved to the 2 - cell stage was 0 with round spermatids and mree ( 17 . 6 % ) with elongated spermatids
结果在培养的3d中， rosi的卵子没有发生卵裂， elsi的卵子中有3个服至2细胞期o7 6o ） 。 |
| 4. | The result shows that the life cycle of all the species comprises a unicellular amoeboid or swarm cell stage , a multinucleate plasmodium stage and a sporulation stage
结果表明，生活循环均包括单核的黏变形体或游动胞、多核的营养体原质团以及形成孢子阶段。 |
| 5. | The results shew that no cortactin was found in unfertilized eggs and the 1 - cell stage embryo ; cortactin appeared after the first cleavage and the blastomeres were highly stained
在原肠开始期，皮层蛋白的分布出现不对称性，腹侧染色较弱，随发育进行染色。逐渐消夫。 |
| 6. | According to dr lanza , the evidence from other mammals is that the individual cells of a developing embryo have lost totipotency by the eight - cell stage
据兰泽博士称，根据对其他哺乳动物的研究发现，发展中胚胎的单个细胞在发展到八细胞阶段（即卵裂球）时就丧失了其万能性。 |
| 7. | Experiment i study on the embryonic development by injecting different developmental stage embryos . this experiment collected 109 embryos to observe their developmental ability by es cells microinjection into 8 - 16 cell stage morula or blastocyst
本试验先后将109枚胚胎用于此项研究，通过将小鼠es细胞注入8 - 16细胞桑椹胚和囊胚，观察两个不同时期注射胚胎的发育能力。 |
| 8. | By coaxing es cells into a more stable , yet still flexible , progenitor - cell stage before administering them , we can avoid uncontrolled differentiation while still taking advantage of environmental cues to generate the desired cell types
在将干细胞注射到人体前，可先诱使它们成为比较稳定、但仍具发展弹性的前驱细胞状态，如此即可避免不受控制的分化，却仍能利用环境的讯号，产生想要的细胞类型。 |
| 9. | In this study , we showed that the protein levels of the cyclin - dependent kinase inhibitor p21 rapidly increased in the one - cell staged fertilized eggs treated with pma . the cleavage from one - cell stage of the fertilized eggs into two - cell stage was inhibited
但研究表明p21结合cdc2的能力不如其他cdks ，其介导的g2 m期的调控是由于p21蛋白抑制cdk2 cyclina复合物的活性，下调cdc25磷酸酶活性，阻止cdc2tyr - 15的去磷酸化，降低mpf活性。 |
