发育

However, forelimb development was stunted, suggesting that retinoic acid is required for forelimb but not hindlimb development.

但是，尽管通过治疗，前肢还是发育不正常，这也恰恰说明了相比后肢的发育，视黄酸是前肢发育的主要因素。

Recent researches have shown that FOXP3(forkhead transcription facter3),which is a critical transcription factor in regulatory T cells development,plays a very important role in regulatory T cells development,This article gives an overview about molecule structure function,the relation of CD+4CD+25 Treg cells in development and function,and the meaning of clinical measure.

最近研究发现，叉头状转录因子3（FOXP3）对于调节性T细胞的发育和功能具有重要作用，是调节性T细胞发育的一个关键转录因子。文章就FOXP3的分子结构功能、与CD+4CD+25Treg细胞在发育和功能上的关系及临床检测的意义予以综述。

These mammary stem cells ensure the regeneration, galactopoiesis and degeneration of mammary gland in repeated pregnancy and birth.

因此，研究大鼠胚胎期和出生早期乳腺的各个发育阶段的形态学特点、各种细胞成分的组成和分布规律，以及乳腺干细胞在各个时期的特点将帮助我们更深入地了解乳腺的发生、发育以及乳腺干细胞的生物学特性，并有助于了解乳腺干细胞与乳腺发育、再生、癌变之间的关系。

Female gametogenesis in higher plants undergoes various developmental changes, including the de novo formation of germline cells, the differentiation of the megaspore mother cell, meiosis, megaspore selection, and the development of the embryosac.

高等植物雌配子体的形成涉及孢原细胞和大孢子母细胞的确立与分化、大孢子发生、功能大孢子以及胚囊的形成和发育等多种复杂调控过程。随着当代生物技术及功能基因组学的发展，近年对雌配子体发育的研究已从细胞学描述逐渐过渡到对基因和发育调控分子机理的探索。

The lithologic pool such as that developed in the actic region while the basin is rifting or in the glacis region while the basin is depressing all which can be found in this basin. Five kinds of sedimentary facies and thirteen sedimentary parfacies can be found in the Shengbei concave during the period of Jurassic series and Cretaceous series.

在该盆地内部既有可能发育断陷期陡坡带的岩性油气藏，又有可能发育坳陷期缓坡带的岩性油气藏，其胜北洼陷在中侏罗统－白垩系沉积时期主要发育5种陆相沉积相类型、10种沉积亚相类型。

And the dipoid gynogenesis induction rates of the homologous sperm and the heterogenous sperm were 32.66%±7.03% and 28.00%±6.48%, respectively.

采用形态学、流式细胞仪DNA含量分析和微卫星标记技术对雌核发育鱼苗进行了分析，证明了雌核发育鱼苗为雌核发育二倍体。

Those DNA bands expressed in female parent but not in male parent also expressed in gynogenesis filial; DNA bands expressed in male parent but not in female parent didn抰 express in gynonensis, while normally expressed in dcploid control fish.

证明牙鲫雌核发育子代的遗传物质来自母本，雌核发育诱导使用的精子经过紫外线灭活后，遗传物质己被破坏，其携带的遗传信息没有传给子代，在DNA水平证明了雌核发育诱导方法和结果的可靠性。

The C-terminal half is responsible for its binding ability as to homeodomains, HIRA-interacting protein 3(HIRIP3), and core histones. HIRA is well conserved during the long evolutionary pathway which indicates that this protein may be essential for life development.

HIRA在从酵母到人类的长期进化过程中高度保守，说明其在生命发育过程中起着重要作用。mHira基因敲除的小鼠胚胎表现出复杂的表型缺陷，原条扭曲，脊索和神经管发育异常，发育至孕中期时全部死亡。

There are according to B-, or whether the early detection of fetal abnormalities, such as: limb development, development of hand-toe toe, with or without harelip and heart bone, internal organs can be seen, as well as whether there is hydrocephalus!

还有照B超，也可以早期发现胎儿有无异常，例如：四肢发育，手趾脚趾发育，有无兔唇，心脏骨骼发育，内脏也是可以看到的，还有是否有脑积水！

Some structure occur lately, and the neurons emerge earlier, such as the hypoglossal nucleus, nucleus ambiguous and reticular formation.

延髓灰质结构形成和神经元发育分化的规律：有些结构发生早，而神经元分化较晚，如下橄榄核、三叉神经脊束核和孤束核；有些结构发生略晚，但其中的神经元胞体分化和发育则较早，如舌下神经核、疑核及延髓的网状结构；有些结构发生早，神经元发育也早，如迷走神经背核。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。