胚胎

There was BMP4 expression at E10 in epithelium of otic capsule. Later, BMP4 expressions were affluent in condensed mesenchyme, vestibular cartilage capsule and sense epithelium. 3. The expression pattern of Smad4 in vestibule is different from BMP4. It was not conspicuous until E15 that Smad4 expressed in macula and crista ampullaris and until E16 in periotic cartilage capsule.

BMP4从E10开始，在间充质浓聚前就有表达；间充质一开始浓聚，BMP4在其中就有较丰富的表达；早期主要表达在前庭囊及前庭囊周围的间充质，在胚胎发育的后期，其在软骨囊及前庭上皮里有广泛阳性表达。3。

Cuticle, and can be seen in cross-section to represent the formation of different types of tissues.

图38.10：野生型的果蝇胚胎有明显不同的背部和腹部结构。

And can be seen in cross-section to represent the formation of different types of tissues.

图38.10：野生型的果蝇胚胎有明显不同的背部和腹部结构。

In addition, the earlier embryogenesis processes of crossbreeding and inbreeding were observed directly by common microscope.

两个交配组合的早期胚胎发育形态基本一致，时间上存在一定的差异。

Nearly 50 percent of the cumulus cells that successfully fused with an egg developed into an advanced embryo.

接近50%的成功与卵子结合的积细胞发育成为复杂的胚胎。

It showed that the cumulus cells did play significant role in the stimulation of nuclear maturation of porcine oocytes and subsequent development.

表明卵丘细胞对猪卵母细胞的核成熟及卵母细胞体外受精后的卵裂和早期胚胎发育，都具有明显的促进作用。

Human embryonic stem cell research is one of hot spots in cur re nt medical science.

人胚胎干细胞(humanembryonicstemcell，hES细胞)是当前医学研究的热点之一。

Rare cases of embryopathy, including aplasia cutis, have been reported with the use of MMI during pregnancy, whereas no such cases have been reported with PTU use. Thus, PTU may be more appropriate for patients with Graves' disease who are in their first trimester of pregnancy.

已有报道指出，妊娠期间使用MMI治疗可偶发生育缺陷等胚胎病，而PTU未见此类相关报道，故PTU可能更适用于治疗处于妊娠期前3个月的Graves病患者。

Cyr and associates described a normal cystic structure in the brain of 8-week embryos.

Cyr及同事描述了在8周胚胎脑中的一个正常囊性结构。

The aim of this study was to establish the culture system of isolation and cultivation of the neural stem cells from the embryonic rat brain and spinal cord. The methods of microscopic dissection, cell culture and immunofluorescence cytochemistry were used.

研究采用显微解剖、无血清细胞培养和免疫荧光细胞化学染色等实验技术，成功地建立了胚胎大鼠脑和脊髓神经干细胞的分离和培养方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。