胚胎发育

A kidneylike organ,being either part of the most anterior pair of three pairs of organs in a vertebrate embryo ,disappearing early in the embryo nic development of higher vertebrates,but functioning as a kidney in some simple vertebrates,such as the lamprey.

前肾，原肾一肾状器官，是脊椎动物胚胎中三对器官最前面一对的一部分，在高级脊椎动物的早期发育时消失，但在一些初级脊椎动物中作为肾脏，如八目鳗

The body weight and length of normal fetal were related positively to pituitary growth hormone content.

但生长激素对胚胎生长发育的影响尚无定论，有关垂体和生长激素含量存在一定分歧。

By 1952, Robert Briggs and Thomas King had transferred the nuclei of an embryo into northern leopard frog eggs and generated tadpoles.

到了1952年，Robert Briggs和Thomas King已经成功地把豹纹蛙胚胎细胞核移植到卵子中，并且发育成了蝌蚪。

It is therefore suggested thatthese specific proteins might play an important role in litchi embryodifferentiation and development.

因此认为，这些特异蛋白在胚胎分化和发育中可能起重要作用。

Although LTRs originate from viruses and are potentially harmful, they are usually made inactive when embryos are developing in the womb.

虽然LTRs产生于病毒同时也是潜在有害的，但胚胎在子宫内发育时垃圾DNA并不活动。

Description: This is the website for Embryo Images Normal and Abnormal Mammalian Development.

网站描述：这是正常与畸形哺乳动物发育胚胎图谱的网站。

DNA methylation is an important modifiable manner of epigenetic dominating the correct expression of gene. It is a main instrument of regulating genome function and plays a prominent part in the embryonic normal development.

DNA 甲基化是支配基因正常表达的一种重要的表观遗传修饰方式，是调节基因组功能的重要手段，在胚胎的正常发育过程中具有显著作用。

With IF failures, most often the embryo produced doesn't hae the genetic to deelop beyond a certain stage, explains Dr. Steen Ory, president of the American Society for Reproductie Medicine who is in priate practice in Margate, Fla.

在失败的IF中，最常见的是生产的胚胎由于不具有遗传而不能发育到一定阶段，美国生殖医学协会**Steen Ory博士解释说，他同时在Margate， Fla从事私人业务。

Many signaling pathways play important roles in the formation of mesoderm and patterning of the neuroectoderm during early development of vertebrate embryos.

在脊椎动物胚胎的早期发育中，多种信号途径对中胚层形成和神经外胚层分化起着重要的调节作用。

The part of the embryonic mesoderm, consisting of loosely packed , unspecialized cells set in a

间叶细胞胚胎的中胚层部分，由生长于胶状基质的、结构松散的、无特定功能的细胞组成，这些细胞将会发育成结缔组织、骨、软骨、血液及淋巴系统

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。