细胞分裂

In the late of April of the second year, male inflorescences unbound and pollinated. When female inflorescences accepted the pollen grains, ovary development was increased in early May. With the development of either of the two ovule, funiculus, integument and nucellus were differentiated. Embryo sac mother cell came into being and the meiosis begins. Then fuctional megaspore developed into matured embryo sac that contain eight nucleuses. In the end of May, double fertilization generated.

次年，4月下旬，雄花序解螺旋散粉，雌花序开花授粉；5月上旬，雌花序授粉后，迅速增长，子房膨大，两个胚珠分化出珠柄、珠被和珠心，珠心中产生孢原细胞；5月中下旬，大孢子母细胞形成并减数分裂，功能性大孢子形成成熟的八核胚囊；5月底，发生双受精。

The cells may continue dividing giving a multicellular mass, which is contained in a gelatinous matrix.

这些细胞还可能会继续分裂形成多细胞团，包被于胶状介质中。

ACT's researchers were not the first to think that such biopsied cells might, instead, be encouraged to reproduce—thus generating a line of stem cells.

ACT的研究人员不是最早认为活检的细胞可以分裂繁殖成一个干细胞细胞群。

Under the light microscope, we found that transfected SGC7901 gastric cancer cells with NHE1 antisense gene were larger with abundant cytoplasm and comparatively same size of nuclei, and the ratio of nuclei to cytoplasm, mitotic count and heteromorphism decreased when they were compared with their parent cells.

与亲本细胞相比，光镜下NHE1反义基因转染的SGC7901胃癌细胞胞体增大，胞质丰富，核大小相对一致，核质比和核分裂象减少，异型性减少。

The effects of absorbing organic extracts from drinking water by five kinds of China made activated carbons were compared using three cytological indexes:the rate of inhibition cell growth,the micronucleus rate of binucleated cellsand the cytokinesis block proliferation index.

采用三项细胞学指标(细胞生长抑制率、双核细胞的微核率和胞质分裂增殖指数)对 5种国产活性炭吸附饮用水中有机提取物的作用进行了比较。

Now whenever the cell divides to copy itself, it also makes copies of the interloper.

这样，不管机体细胞何时分裂复制，都有另一批病毒细胞如影随形复制出来。

Methods Immunohistochemical SP method was used to detected c-erbB-2 expression,lymph node metastasis and karyokinesis of cancer cells in breast infiltrating ductal carcinoma.

结果c-erbB-2阳性表达主要分布在肿瘤细胞的胞膜上；随着c-erbB-2表达强度的降低，肿瘤淋巴结转移率呈减少的趋势；肿瘤组织中细胞的核分裂数目随着c-erbB-2的表达强度增加而增多。

Effect of tenuazonic acid on micronucleus and karyokinesis of Vicia faba root tip cells was investigated to evaluate its cytogenetic toxicity.

利用蚕豆根尖为材料，研究了链格孢菌毒素细交链孢菌酮酸对细胞微核和有丝分裂的影响，以评价其细胞遗传毒性。

At the leptotene stage the enzyme was mainly present in the cisternae of smooth endoplasmic reticulum and their derived vesicles, but absent in the Golgi body and Golgi vesicles.

花粉母细胞减数分裂前期Ⅰ的活性进行了电镜细胞化学定位，以研究其在次生胞间连丝和胞质通道形成中的作用。

A group of four cells formed as a result of meiosis in a spore mother cell.

四分体：1由孢子母细胞减数分裂产生的一组四个细胞。

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。