查询词典 vertebrate

In addition, the South Korean researchers identified the maintenance of embryonic stem cells pluripotent Rap2GTPase gene in control of vertebrate dorsoventral axis structure of Nodal signal-regulated protein in the process of mechanism.

此外，韩国研究者查明了维持胚胎干细胞多能性的Rap2GTPase基因在控制脊椎动物背腹轴结构形成的Nodal蛋白质信号调节过程中的作用机理。

Yet in many vertebrate groups, teeth are not restricted only to the oral cavity, but extend posteriorly as pharyngeal teeth that could be derived either directly from the endodermal epithelium, or from the ectodermal epithelium that reached this location through the mouth or through the pharyngeal slits.

但在很多脊椎动物里牙齿的发育不仅只有上述来源，还有向后延伸形成的咽部牙齿，可能由内胚层上皮或经由口腔或口咽裂至此部位的外胚层上皮形成。

Using chicken eggs and a state-of-the-art imaging device which can reveal how cells move in three dimensions, the researchers demonstrated a key difference in the way gastrulation occurs between higher vertebrate species and less evolutionarily advanced animals.

利用鸡卵和能反应细胞三维移动的最新成像设备，科学家证明了高等脊椎动物和低等动物之间原肠胚形成的差异。

The Collaborative Program in Developmental Biology is primarily dedicated to research and education in Developmental Biology including amphibian gastrulation, molecular control of hematopoiesis, lymphocyte lineage commitment and cell development, hematopoietic stem cells, lymphocyte development, cell enlargement and cell differentiation, vertebrate embryogenesis, developmental neurobiology.

动物学系发育生物学合作研究组主要致力于两栖动力原肠胚形成，造血作用的分子控制，淋巴细胞血统定型和细胞发育，造血干细胞，淋巴细胞发育，细胞生长和细胞分化，脊椎动物胚形成，发育神经生物学等。

The Collaborative Program in Developmental Biology is primarily dedicated to research and education in Developmental Biology including amphibian gastrulation, molecular control of hematopoiesis, lymphocyte lineage commitment and cell development, hematopoietic stem cells, lymphocyte development, cell enlargement and cell differentiation, vertebrate embryogenesis, developmental neurobiology.

动物学系发育生物学合作研究组主要致力于两栖动力原肠胚形成，造血作用的分子控制，淋巴细胞血统定型和细胞发育，造血干细胞，淋巴细胞发育，细胞生长和细胞分化，脊椎动物胚形成，发育？？？经生物学等。

By pushing a whole series of branching points in gnathostome evolution out of the Devonian and into the Silurian, the discovery of Guiyu also signals that a significant part of early vertebrate evolution is unknown Fig.

此外，鬼鱼的背鳍棘刺和其前方具有棘刺的骨板很可能也是原始特征。上述特征在早期有颌类中广泛分布，而它们却同时出现鬼鱼身上，使得我们首次观察到了肉鳍鱼类一系列重要鉴别特征的演化顺序。

The transforming growth factor-β superfamily, a large group of highly conserved growth factors including TGF-βs, activins and BMPs, regulate a wide variety of cellular functions such as proliferation, differentiation, apoptosis and migration. Signals from these growth factors are transduced by a group of Smad proteins. To date, there are nine vertebrate Smads, including the receptor-activated Smads , Smadsl-3, 5 and 8, the common mediator Smad4 and Smad4β, and the inhibitory Smads, Smad6 and 7. Signaling is initiated when the ligand induces assembly of a heteromeric complex of type Ⅱ and type Ⅰ TGFβ receptors. Then R-Smads are directly phosphorylated by activated type I TGF-β receptors.

在多种SMADS中，SMAD5令我们产生兴趣，基于三个原因：1、Smad5基因敲除胚胎中发现卵黄囊的异位造血以及CFU-GM祖细胞数目增加，表明SMAD5可能是早期造血发育的负向调控基因。；2、应用反义核酸封闭Smad5可以逆转TGF-β对祖细胞增殖的抑制效应，表明它可能介导TGF-β信号转导，后者的异常，包括某些SMADS的功能异常，和白血病紧密相关；3、Smad5基因定位在人染色体5q21，此区域的缺失和急性髓系白血病和骨髓增生异常综合症相关，因此，Smad5被怀疑为白血病抑制基因。

In China, fauna Hipparion paleontology study is the first large-scale fossil fauna, which shows that China places the birth of Vertebrate Paleontology.

在我国，三趾马动物群是古生物学进行研究的第一个大型化石动物群，标志着中国古脊椎动物学的诞生。

Remains of ancient culture and political county is very intensive, show soil more than 8,000 years ago 1.3 million years ago as the shovel teeth, and other large and medium-sized Hipparion extinction of a wide range of vertebrate paleontology specimens, shocked the world, known as the paleontology of the "Garden of Eden ."

和政县古文化遗存十分密集，现出土的8000多件距今1.3万年前的铲齿象、三趾马等大中型灭绝古脊椎动物标本种类繁多，震惊世界，被誉为古生物的&伊甸园&。

Or, as an adolescent on the new Earth, he has his first shy love affairs with Ayl, Lll, and Mrs. Vhd Vhd; climbs up to the moon on a ladder as it looms hypnotically bright over him; watches the planet flood with its first color as an atmosphere forms; migrates as an adventurous young vertebrate from sea to land; or wanders the deserted plateaus as the last, lonely dinosaur, desperately wanting to belong.

后来，作为新诞生的地球上的一个青年，他有了同Ayl， Lll，和Vhd Vhd夫人的羞涩的初恋；当一架梯子出现在他梦里的时候，他顺着它爬到了月亮上；他观察地球上的洪水，以及由此形成的地球大气的第一道色彩；作为一个有冒险精神的年轻脊椎动物，他从海里移民到陆地上；作为一条最后的孤独的恐龙，他漫步在荒芜寂静的高原上，拼命的寻找自己的归属。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。