查询词典 embryonic development

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。

ObjectiveThe aim of the research was to study the absorption and utilization laws of calcium and phosphorus during embryonic development period of France Muscovy duck.

为了了解法国番鸭胚胎发育期间钙、磷的吸收利用规律。

Many animals form a number of temporary structures along their anterior-posterior axis during embryonic development – somites. Cells in somites differentiate to form the sclerotome, the dermotome and myotome.

脊椎动物在胚胎发育的过程中沿身体前后轴形成一定数目的暂时性结构—体节，随着胚胎的继续发育每个体节分化成为生骨节，生皮节和生肌节，继而生成各种组织。

At water temperature of 16.0-17.2 ℃, the process of embryonic development could be divided into 24 stages, which were described as follow: fertilized egg at 0 min, 2-cell stage at 75 min post fertilization; myotome forming stage at 43 h PF, and hatching-out stage at 94 h PF when the accumulative temperature reached 1616.8 ℃.h, and the average size of larvae was about 3.8 mm in body length.

梭鲈胚胎发育过程可分为24期，在水温16.0~17.2℃范围内，受精75 min开始第1次卵裂，受精后43 h开始形成器官，受精后约94 h开始出膜；刚出膜的仔鱼全长平均为3.8 mm；从受精到孵化出膜总积温为1 616.8℃。h。

The early embryonic development of Rana rugulosa was studied at water temperature of 18～23℃.The course, from its fertilized egg stage to operculum completely closed stage, may be divided into 25 stages,which totally take about 126 hours.

无尾两栖类的胚胎发育在胚胎学、发育生物学等学科的研究中有着重要意义，因而有关的研究国内外均有报导，Shumway（1940）详细研究了豹蛙的发育，并提出了较系统的发育资料［1］，故而被国内外许多教材加以采用。

Unit one: Animals: forms and functions, nutrition and digestion, respiration, circulation, the immune system, osmoregulation and excretion, chemical regulation, reproduction and embryonic development, and nervous system.

第一单元：动物的外形及功能。主要内容包含营养及消化、呼吸系统、循环系统、免疫系统、渗透调节及排泄系统、内分泌系统、生殖及胚胎发育和神经系统。

METHODS: The transcriptional levels of BMP5 in the control and treated embryonic palatal shelves were detected by in situ hybridization with advancing development.

采用原位杂交技术观察在不同发育时期，正常胎鼠和腭裂胎鼠腭突中BMP5 mRNA的表达情况。

Instead parthenogenesis takes place: the egg is spontaneously activated and proceeds to normal embryonic development.

孤雌生殖，即卵自发地被激活并进入正常的胚胎发育过程中。

Martin Pera, from the Keck School of Medicine, envisages that this "will offer a straightforward route to development of banks of embryonic stem cell lines of a desired phenotype."

来自Keck医学院的Martin Pera指出这将为建立特定表现型胚胎干细胞库提供直接的方法。

Constant embryonic tooth development began in the first 4 weeks to 9 months to form, the lower total of 28 permanent tooth germ.

恒牙胚的发育始于胚胎第4周，至第9个月形成上、下颌共28个恒牙牙胚。

We have limited budget let me know if you can do this competitively.

我们有限的预算让我知道如果你能做到这一点竞争力。

We don't know how other critters breathe--lizards, for example.

我们还不知道诸如蜥蜴之类的动物如何呼吸。