胚胎形成的

Results Primary RPCs extracted from the neural retina demonstrate certain biological characteristics: the cell population could form neurospheres and younger adherent cells expanded in clusters.

结果 从兔胚胎视网膜神经部分离出的原代视网膜前体细胞具有明显的生物学特性：所培养细胞可形成悬浮生长的细胞团，刚贴壁的细胞成簇状生长，这些细胞用免疫细胞化学染色神经上皮干细胞蛋白表达呈阳性。

It is only seen in the earlier period of embryogenesis and organ formation.

血管新生是指在已经存在的血管的基础上以出芽的方式形成新的微血管的过程，可见于胚胎发生期以及出生后。

His theory reconciled a host of diverse kinds of evidence such as the succession of fossil forms in the geological record, the geographical distribution of species, recapitulative appearances in embryology, homologous structures, vestigial organs and nesting taxonomic relationships.

他的理论是一个调和的东道主多样的各种证据，如继承中的化石形成于地质记录，地理分布的物种，重述露面，在胚胎学，同源结构，残留机关和产卵分类关系。

Exoscopic Describing the type of development of a plant embryo in which the apex of the sporophyte develops from the outer cell formed by the first division of the zygote , the inner cell giving rise to the foot.

外向的：指一种植物胚胎的发育类型，其孢子体的顶端由受精卵的第一次分裂的外层细胞发育而来，内层细胞形成根。

Some key developmental events of embryogenesis, such as directional expansion, asymmetrical first division, suspensor formation and degeneration as well as embryo differentiation, occurred as that in in planta embryogenesis in the experimental condition.

追踪观察表明，合子体外胚胎发生过程中关键发育事件，如合子休眠期间的定向生长、一次不对称分裂的完成、胚柄的形成和解体、胚的分化等过程均可在体外重现。

Lineage-tracing analyses indicate that the ectopic endothelial cells in embryos with decreased Notch activity originate from mesodermal cells that normally produce erythrocyte progenitors.

命运追踪结果显示，Notch降低的胚胎中，异常增加的内皮细胞是来源于本应该形成红细胞前体的中胚层细胞。

Neurogenesis and development of the central nervous system in the embryo stage of swimming crabs, Portunus trituberculatus, were studied by the histological method.

应用组织学方法研究三疣梭子蟹胚胎期中枢神经系统的发生和发育，光学显微镜下镜检切片，在第二期卵内无节幼体阶段开始观察到脑；第二期卵内状幼体阶段，前脑由视神经层、侧原脑和中央原脑组成，与位于食道两侧的中脑和后脑形成完整的脑。

Lung morphogenesis begins with a ventral out-pouching of endodermally derived cells from the anterior foregut into the surrounding mesenchyme at embryonic day 9-9.5 in the mouse.

肺癌的形成始于腹出的pouching endodermally源性干细胞的前肠到周围间质在胚胎一天在9-9.5 鼠标。

To address this issue, we microinjected Morpholino Oligonucleotides, which acts as a specific translational inhibitor, into 1-cell stage zebrafish embyos to knockdown the expression of FoxD5. Results showed that the newly forming somites of the FoxD5-MO-injected embryos were malformed both in the stage when the somitogenesis was completed (24-hpf) and in the stage when the somitogenesis was in progress (14-hpf).

在本篇研究中，为了了解FoxD5在体节生成时的功能，利用专一抑制基因转译之Morpholino Oligonucletides对1-cell时期之斑马鱼胚胎进行显微注射以抑制FoxD5的转译，并在体节发育已完成之24 hpf时、及体节仍在形成之14 hpf (约12-somite stage)时分别观察FoxD5-MO注射个体(FoxD5 morphants)，发现新生成之体节处有产生体节发育畸形的现象。

BACKGROUND: The HOX gene family is a highly conserved transcription factor family, which affects the formation of basic axis and secondary axis during embryonic development, at the same time, it plays a pivotal role in the development of the central nervous system, axial skeleton, stomach intestine, urogenital system and external genitalia.

背景：HOX基因家族是一个高度保守的转录因子家族，该家族在胚胎发育阶段基本体轴和次级体轴的形成中起作用，同时在中枢神经系统、中轴骨、胃肠和泌尿生殖系及外生殖器和肢体的发育中起重要作用。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失