胚胎发育

Megakaryocytes in fetal liver and bone marrow are small sized during ontogenesis and remain so until a few months after delivery .

在胚胎发育时期，无论是胎肝造血还是骨髓造血，巨核细胞形态均较小，直到出生后几个月，仍小于成人的巨核细胞。

This paper reviews the ooplasmic transfer in summary, the relation between ooplasm and fertilization and embryo development, the hereditary behavior of heterogenous mitochondria DNA and it's examination after ooplasmic transfer.

通过卵胞质转移研究概况、卵胞质与受精和胚胎发育、异种线粒体DNA遗传方式和卵胞质转移遗传物质的检测4个方面对卵胞质转移技术进行讨论。

The fertilization and embryo development in crosses of Triticum carthlicum×Pennisetum americanum and Triticum aestivum L.cv.

对波斯小麦、&中国春&小麦与珍珠粟远缘杂交的受精作用和胚胎发育进行了研究。

Ten members of the Pax gene family, which perform crucial regulatory functions during embryonic and postembryonic development, have been identified in Drosophila.

果蝇中已发现10个Pax基因家族成员，它们对果蝇胚胎发育及成虫组织器官的分化有非常重要的调控作用。

During embryogenesis, CaM mRNA was expressedstronger in the endosperm cells than in the proembryo cells at earlier stage but it wasreversed at embryo differentiation stage.

胚胎发育早期，钙调素mRNA在胚乳细胞中的表达比原胚中强，而后期则在分化胚中比胚乳细胞中强。

Development ability of sheep embryos after pronuclear injected withDNA was studied.

研究了显微注射对绵羊体外受精胚胎发育的影响。

In this study, a new horizontal microinjection system has been established to solve these problems. Because the average time per pronuclear embryo by microinjection has been significantly shortened with the horizontal system, the cleavage rate and 16-cell rate of those microinjected embryos increased markedly.

为了解决这些问题，本研究有针对性地设计了新型的水平微注射系统，利用此系统，可明显缩短常规注射原核胚的平均时间，注射后原核胚的分裂率、8-16细胞胚胎发育率也明显提高。

Study on the prote ome of embryo in mice will contribute largely to the knowledge of mechanism du ring health and disease of reproduction.

鼠胚胎发育过程蛋白质组的研究，为了解人类生殖健康和疾病发生的机制提供了有意义的资料。

Three, congenital anorectal atresia: This is because of bad or abnormal embryonic development due to congenital diseases, children with anal atresia completely, and some combined vestibular rectal fistula, rectal-perineal fistula or rectovaginal fistula, boys still rectal fistula and other bladder deformity.

三、先天性肛门直肠闭锁：这是由于胚胎发育不良或异常所致的先天性疾病，患儿肛门完全闭锁，有的合并直肠前庭瘘、直肠会阴瘘或直肠阴道瘘，男孩还有直肠膀胱瘘等畸形。

Healthy kunming mice mate to produce embryo. sacifice prognant mice at 14dpc, make preparation of fetal liver and born marrow. then proceed 40%-70% percoll gradient seperation to obtain nucleated erythroid cells. resuspend the purified erythroid cells in DMEM medium without serum, adjust cell concentration to 5×10〓.

正常健康昆明小鼠交配，待胚胎发育至14天时，处死怀孕母鼠，取胎鼠肝脏，用另一组成年小鼠制备骨髓；然后应用40％-70％Percoll梯度分离法分离胎肝和骨髓中的有核红细胞，纯化后的细胞用无血清DMEM培养基悬浮，调整细胞浓度为5×〓／ml。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。