囊胚

Although Pygo expressed ubiquitously in the embryo, it expressed at relatively high level in pre-blastoderm embryos which indicated a high degree of maternally provided message, followed by a low level of ubiquitous zygotic expression.

结果表明，虽然pygo普遍表达于整个胚胎中，并且在果蝇胚胎发生全过程都有，但Pygo在前囊胚层(pre-blastoderm)中的表达水平相对较高，这说明胚胎发生过程中来自母方的贡献较高。

Mouse embryonic stem cells are pluripotent cell lines isolated from the inner cell mass of blastulas which can proliferate unlimitedly and have ability of self-renewal.

中国农业科学院，动物遗传育种与繁殖，2009年，博士 \'胚胎干细胞是从囊胚内细胞团分离出来的，具有无限增殖、自我更新的能力。

Of 174 pairs of F1 embryos, 88 to 100% developed to twin blastocysts.

在培养的174对F1胚胎中，88—100％发育成孪生囊胚。

In contrast, development of CD-1 embryos (835pairs) was significantly lower (25 to 36%).

相反，在835对CD—1胚胎中，仅有25—36％的发育为囊胚。

When the temperature was at 25℃, the EFS30 OPS two-step method had a blastocyst rate of 62.22%, the highest rate in all groups. After the morulae cultured from thawed embryos from the best straw group and OPS group were transferred, all groups have obtained offspring.

在25℃温度条件下细管法和OPS二步法玻璃化冷冻后的小鼠2-细胞胚胎，经培养发育至囊胚后，用H33342染色，在荧光显微镜下观察并进行细胞计数。

"In mammal s, the fertilized egg or zygote undergoes cleavage (cell division without cell growth) to form a hollow ball or blastocyst."

在哺乳动物中，卵与精子结合而成受精卵，受精卵发生数次细胞分裂后，形成一个中空球形的囊胚。

"In mammals, the fertilize d egg or zygote undergoes cleavage (cell division without cell growth) to form a hollow ball or blastocyst."

在哺乳动物中，卵与精子结合而成受精卵，受精卵发生数次细胞分裂后，形成一个中空球形的囊胚。

"In mammals, the fertilized egg or zygote undergo es cleavage (cell division without cell growth) to form a hollow ball or blastocyst."

在哺乳动物中，卵与精子结合而成受精卵，受精卵发生数次细胞分裂后，形成一个中空球形的囊胚。

Mouse blastula showed clear band in 24-72 hours, came out from cell membrane in 1 day. After 3-5 days, it become embryonic stem cell mass. At 7 days, the cell mass showed "bird nest" shape.

小鼠囊胚孵出透明带的时间为24~72 h，从胞膜中孵出约为1 d，3~5 d后可形成胚胎干细胞集落，7 d后集落呈&鸟巢&状。

These orient themselves so that a fluid-filled cavity, the blastocoel, forms inside the mass of cells

这些细胞进行自我调整，以致在细胞群内部形成一个充满液体的腔，即囊胚腔。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。