细胞分裂

In wheat, during mitotic division H3 phosphorylation started in special domains of the nuclei from early prophase and vanished at telophase, remaining mainly in the pericentromeric regions of chromosomes at metaphase and anaphase.

有意义的是分裂末期这列荧光斑点的衰退在时间上与动物细胞的胞质分裂和染色体的解凝集相偶联。

The localization of 〓 changed during the process of rat oocytes maturation. In GV stage oocytes,〓 was concentrated in GV but it concentrated around chromosomes from metaphase Ⅰ to telophase Ⅰ.

〓的在大鼠卵母细胞内的定位随成熟分裂的过程而变化：在GV期生发泡内核仁周围有特异分布，在成熟分裂的中期至末期〓在染色体周围区域有特异分布。

The result showed that during mitotic division, the Ser-10 phosphorylated histone H3 start from the prophase and vanished at telophase, remaining mainly in the pericentromeric regions at metaphase and anaphase. During the mitosis the microtubules take on regulated change pattern.

结果显示在小麦根尖细胞有丝分裂过程中Ser10磷酸化的组蛋白H3的出现和消失与染色体的凝集和解凝集的过程存在时空上的相关性，在有丝分裂的过程中这种蛋白在着经线粒上的定位有有助于染色体向两极移动。

The result showed that during mitotic division,the Ser-10 phosphorylated histone H3 start from the prophase and vanished at telophase,remaining mainly in the pericentromeric regions at metaphase.During the mitosis the microtubules take on regulated change pattern.

结果显示在小麦根尖细胞有丝分裂过程中Ser10磷酸化的组蛋白H3的出现和消失与染色体的凝集和解凝集的过程存在时空上的相关性，在有丝分裂的过程中这种蛋白在着经线粒上的定位有有助于染色体向两极移动。

The results were as follows: 1.Inoculated on the induction medium at the late uninucleate stage,the microspores could initiate embryogenesis by first divisions in both symmetric and asymmetric patterns,but the former was predominant.

通过观察玉米小孢子胚胎发生的细胞形态学特征，发现：离体培养条件下单核后期的花粉可以通过均等分裂和不均等分裂两条途径形成胚状体，与前人的研究结果一致。

This process of cell division or cleavage in the zygote is called segmentation.

这种细胞的分裂或受精卵的分裂称为卵裂。

Results: The differentiated neuron appeared different patterns of amitotic figures such as transverse sever, longitudinal split, etc. The proliferating neurons divided in an asymmetric way morphologically and chemically. The differentiated neuron appeared an obvious movement of cell migration and neurite extension.

结果：培养分化的神经细胞呈现横裂、纵裂等不同方式的无丝分裂像；分裂中的神经细胞可呈现形态及化学不对称性；分化的神经细胞有明显的细胞迁徙运动和突起延伸。

Tic division of F1 hybrid was normal ,anucleate cells and cells with micronuclei which were produced by asymmetrical separation of chromosomes were observed at the second meiotic division.

结果表明，杂种F1减数第一分裂基本正常，在减数第二分裂观察到由于染色体不对称分离产生的无染色质和仅带有微核的子细胞。

To define the mechanism underlying this mitotic defect, we generated cells that differ only in their centrosome number.

但是现在，长期活细胞成像显示，CIN癌细胞很少经历多极分裂，而且甚至当它们经历这种分裂的时候，所产生的也主要是无法生存的后代。

In the BC〓F〓 and BC〓F〓 generation of Yannong15×Thinopyron intermedium hybrid, 4 octoploids which had chromosome number of 2n=56 and could form 28 bivalent at PMC MI, 14 disomic addition lines which had chromosome number of 2n=44 and could form 22 bivalent at PMC MI; three monosomic addition lines which had chromosome number 2n=43 and had the chromosome configuration of 21Ⅱ+1Ⅰ at PMC MI, 1 substitution line which had chromosome number 2n=42 and could form 21 bivalent at PMC MI were selected by observation of mitosis in root tip cell and meiosis in pollen mother cell.

在烟农15与中间偃麦草杂交的BC〓F〓和BC〓F〓代中，通过根尖有丝分裂和花粉母细胞减数分裂中期Ⅰ观察选出4个2n=56，PMC MI染色体构型为28Ⅱ的八倍体小偃麦；14个2n=44，PMC MI染色体构型为22Ⅱ的双体异附加系；3个2n=43，PMC MI染色体构型为21Ⅱ+1Ⅰ的单体异附加系；1个2n=42，PMC MI染色体构型为21Ⅱ的异代换系。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。