端细胞的

Telomeres, short tandem repeat sequences at the ends of eukaryotic linear chromo somes, function to stabilize chromosomes.

端粒是真核细胞染色体末端的重复序列，对维持染色体的稳定性具有重要作用。

Structure of maculae densa is observed around renal corpuscle, but no medullary loop is discovered.

肾小囊是肾小管的起始端，由内、外两层壁层构成，内层与肾小球的毛细血管紧贴，外层为单层扁平上皮细胞。

Egg apparatus The three haploid nuclei that are situated at the micropylar end of the embryo sac in most flowering plants. The central nucleus is the female gamete and those to either side of it are called the synergids.

卵器：在大多数显花植物的胚囊中，位于珠孔端的三个单倍体核，其中卵细胞位于中央，两个助细胞分别位于两边。

It had a good radiopacity almost equivalent to that of a 2 mm thick aluminium wedge when the iodine content was 3.5 wt%.

MTT法测试表明对碘苯胺封端的聚氨酯材料不具有细胞毒性。

In conclusion , ERK and telomerase serve a function to some extent in drug resistance of leukemia and ovariancarcinoma cells. The inhibition of ERK signal transduction pathways led to reduction of phosphorylated ERK1 and ERK2protein expression level , and successionally down2regulated the telomerase activity.

通过阻抑ERK通路，降低磷酸化ERK1/ 2蛋白表达水平，进而下调端粒酶活性，可以达到增强白血病和卵巢癌耐药细胞对HRT 或DDP 敏感性的目的。

Objective To investigate the features of telomerase and PCNA in gestational trophoblastic tumor.

目的 研究妊娠滋养细胞肿瘤中端粒酶催化组分与增殖细胞核抗原的表达意义。

Objective To investigate the diagnostic significance oftelomerase activity in the exfoliated stomach cells sampling from endoscopic brushing.

目的：探讨胃镜直视下刷取胃粘膜脱落细胞中端粒酶活性对胃癌的诊断价值。

Methods: The effect of ICA on the telomerase activity and proliferation and differentiation of HL-60 cells was compared with ATRA and valuated in vivo and in vitro.

采用ICA与全反式维甲酸对比试验，观察ICA对白血病细胞端粒酶活性及增殖分化的影响。

There was no acrosome lied anterior to the nucleus. There was a fossa in the end of the head and centrioles and mitochondria were located in the fossa.

头部后端凹陷，称为植入窝，植入窝内有线粒体和中心粒等细胞器结构，此区域为精子的中片。

Chromosome number in all counted complete metaphases of Carassius auratus var. Dongtingking is 48. Analysis of chromosome can be divided into four sections according to the position of the centromere.

核型分析结果表明，翘嘴鲌的肾细胞染色体组是由48条染色体组成，染色体组型按着丝粒位置可分为四组，分别是中部着丝粒染色体、亚中部着丝粒染色体、端部着丝粒染色体。

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。