核粒

On the morphological differentiation,by inducing of fetal calf serum,it wasshown that the cytotrophoblast cells underwent aggregation first,and the adjacentcytoplasm membranes became tightly contacted through desomosomes andcytoskeleton.Then the adjacent cytoplasm membranes disintegrated fragmentallyto form fusion pore-like structure.Finally the multinuclear cells formed and inwhich the intercellular desmosomes disappeared.Immunocytochemical stainingfurther demonstrated that the formation of syncytium was through cell membranefusion rather than the amitosis process.

细胞形态分化的研究结果表明：早孕胎盘来源的细胞滋养层细胞在血清诱导下，首先发生聚集，并通过桥粒和细胞骨架使相邻的细胞膜紧密接触；之后细胞膜发生片段断裂，形成融合孔样结构；细胞间桥粒消失，最终形成多核的合体细胞；免疫细胞化学分析进一步证实合体化是通过细胞膜融合而非无丝分裂（amitosis即细胞核分裂而细胞质不分裂）实现的。

It lacks the centromere, telomere, and other structures of the eukaryote chromosome.

缺少着丝粒，端粒，以及一些其他真核生物染色体具备的结构。

The results indicated that in the FNAC smears of mediastinal tumor, neutropilic myelocyte, neutropilic metamyelocyte, neutropilic stab granulocyte and neutropilic segmented granulocyte were observed in granulocytic series; early normoblast, polychromatic normoblast and orthochromatic normoblast were observed in erythrocytic series; and granular megakaryocyte, thromocytogenic megakaryocyte, scattered platelet and matured lymphocyte also were observed. Cell morphology and distribution in different stages were are similar to that in bone marrow smear, and these cells belong to the extra-medullary hemopoietic tissue.

结果表明：纵隔肿块的细针抽吸活组织的细胞学涂片显示粒系细胞中可见中性中幼粒细胞、中性晚幼粒细胞、中性杆状粒细胞、中性分叶核粒细胞；红系细胞中可见早幼红细胞、中幼红细胞、晚幼红细胞；并可见颗粒巨核细胞、产血小板的巨核细胞、散在血小板及成熟淋巴细胞；细胞形态及各期细胞分布与骨髓片相似，为髓外造血组织。

Double fertilization The fusion of one pollen nucleus with the egg to form the zygote and of the other pollen nucleus with a polar nucleus to form the triploid endosperm nucleus.

双受精：指花粉粒中的一个精子与胚珠中的卵细胞结合形成受精卵，另一个精核与极核结合形成三倍体的胚乳核。

A nucleus central channel was present along the nuclear longitudinal axis during spermiogenesis.

精子形成期间，核中央位置形成贯穿整个核的中央通道，并在核底部形成植入窝，中心粒位于其中。

The effects of foaming agentand nucleating agents on the properties of pressure foamed samples were studied.

通过扫描电镜观察了可发性珠粒的泡孔形态，探讨了发泡剂、成核剂对珠粒密度的影响，测试了可发性珠粒模塑成型后的力学性能。

The plasmid pcDNA3.1-3-1E and pcDNA3.1 was respectively used to immunize SPF chicks by injection intra-muscularly in thigh muscle at 14 and 21 days of age.Chicks in each group except that in the unchallenged control group were challenged with 5×104 E.acervulina sporulated oocysts at 28 days post-inoculation,and the immune protective efficacy was observed.

将构建的重组质粒以及空载体质粒分别于14、21日龄分2次经腿部肌肉注射免疫SPF雏鸡，28日龄除非免疫非感染对照组外各组攻击性感染5×104个堆形艾美球虫孢子化卵囊，观察真核表达质粒对球虫感染鸡的免疫保护作用并探讨其免疫保护机理。

X chromosome was a large submetacentric chromosome. Y chromosome was a small metacentric chromosome.The relative length of chromosome was measured by AutoCAD software. The relative length of autosomes ranged from 1.545% to 4.921% in Yanbian yellow cattle and from 1.637% to 5.855% in Liyan hybrid cattle.

结果表明，延边黄牛和利延杂交牛二倍体染色体数目2n=60，公牛核型为2n=60，XY，母牛为2n=60，XX，其中29对常染色体均为端着丝粒染色体，X染色体为较大的亚中着丝粒染色体，Y染色体为较小的中着丝粒染色体。

ABSTRACT］ObjectiveTo construct a eukaryotic expression vector of M1RNA ribozyme against telomerase RNA and transfect to hepatocellular carcinoma cell lines.

摘要］ 目的构建抗人端粒酶RNA的M1RNA核酶的真核表达载体，并筛选稳定转染核酶的肝癌细胞株。

Objective To construct a eukaryotic expression vector of M1RNA ribozyme against telomerase RNA and transfect to hepatocellular carcinoma cell liness.

目的 构建抗人端粒酶RNA的M1RNA核酶的真核表达载体，并筛选稳定转染核酶的肝癌细胞株。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。