细胞分裂

The cleavage rate of 2-cell stage was 50%, but few embryos developed into morulas and blastocysts (2%). More than 130 embryos at 2-4-cell stage were transferred into oviduct of 13 synchronized foster rabbits and 2 mice. No fetus or implantation sites were observed in both recipients.

其2—细胞胚胎的分裂率可达50％，但发育至桑椹胚和囊胚阶段的胚胎数目大大减少，只有2％的囊胚发育率。13只受体兔共移植重构胚胎121枚，结果未发现产仔或死胎，仅看到有的兔子宫有於血状。

A telomere is at each end of a chromosome. Telomeres are necessary for a cell to divide.

端粒位于每个染色体的末端，对细胞的分裂是必需的。

Hytivus. Although chromosome number of all materials studied was counted to be 2n = 38, the difference in meiotic behaviors between individuals of first selfed progenies were observed, which indicated the difference in the degree of diploidization.

虽然染色体记数的结果表明所有单株的染色体数目都为38条，但是花粉母细胞的减数分裂行为在单株间的细小差异也被观察到了，这表明各单株间存在较小的二倍化程度的差异。

FtsZ, a functional protein existed in prokaryotes and plants controlled the division of prokaryotic cells and plastids in plants.

FtsZ是广泛存在于原核生物和植物中的一种功能蛋白，它控制着原核细胞和质体的分裂过程。

Methods:(1) bFGF was loaded with PLGA, PELA and gelatin microspheres. The pharmac characteristics of particle size distribution, loading efficiency, entrapment efficiency, bFGF release kinetics were evaluated with scanning electronic microscope, MTT and ELISA respectively.

目的：制备bFGF缓释微球并作处方筛选，在体外培养的软骨细胞中观察其促有丝分裂作用和促基质合成作用，以及在兔膝关节全层软骨缺损模型中验证其促进软骨修复的作用，为其临床应用提供实验基础。

RESULTS: Propofol preconditioning reduced the population ofapoptotic cells and Caspase-3 and PARP cleavage induced by H2O2inhepatic L02 cells.

结果：异丙酚预处理可以减少由过氧化氢引起的肝内 L02细胞凋亡、半胱天冬酶3和 PARP 分裂的总数。

Cells in human are similar to yeast in cell cycle, and a lot of studies of human cells base on yeast research.

然而，依地福新抑制肿瘤细胞的胞质分裂的机制仍然不清楚。

With the seeds of artificially cultivated 2-year-old A. heterophyllum as tested materials, the cells in metaphase in the seeds were made for observation, statistic and karyotype analysis, and based on the 2 main features of length ratio and arm ratio of chromosome, the karyotypes were classified according to the criteria of Stebbins.

方法］以人工栽培的2年生异叶天南星种子为试材，观察种子中的中期分裂相细胞并对其进行统计和核型分析，其核型分类根据核型中染色体的长度比和臂比2项主要特征，按Stebbins的标准进行划分。

It proves that tree top leaves suffer from water stress and hydraulic limitation becomes greater with tree height.Water stress influence tree height growth in several aspects:firstly is the influence of exterior water condition,and community average tree height is positive with exterior water condition.Secondly, hydraulic limitation influences individual tree structure and function.Xeromorphic structure,Lower water potential and turgor pressure limit cell division and expansion,which restrict gas exchange and carbon assimilation capability.However,respiration consumption increases with the spread of tree crown.Shortage of nutrient limits carbon investigation on new leave growth and may ultimately limit tree growth.Thus,the main limitation of tree height is water.

水分对树高生长的限制首先是外在的水分状况，群落的总体高度随外界水分状况的变差而变矮；再就是水力限制对单株树木的结构和功能的影响，水势降低、膨压减小使细胞的分裂和扩展受限，旱生型结构加剧水力对气体交换能力的限制、使光合碳同化能力受到限制、而呼吸消耗却随着树木个体的增大而增大，制造营养物质不足、使得营养亏缺、造成投入新枝叶的营养受限，最终限制了树高继续增长。

This is a little Splinter Cell Taste of shooting action adventure game.

介绍：这是一款有点分裂细胞味道的射击动作冒险游戏。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了