核分裂

But,some functional cells containdistinct starch grains like mature megaspore and single nucleate embryo sac which isin the station before division.

同样，从单核胚囊分裂开始到八核胚囊刚形成也未观察到淀粉粒。

Antipodal cells The three haploid cells found in the embryo sac of seed-bearing plants that migrate to the chalaxal end of the sac farthest from the micropyle.

反足细胞：胚囊三次分裂形成卵细胞，助细胞和极核等，其中位于合点端的三个单倍体细胞称反足细胞。

Which of the following phases of mitosis is essentially the opposite of prophase in terms of nuclear changes?

在有丝分裂的阶段中，哪种本质上是前期在核变化方面的相反？

In addition, some abnormal cytology behaviors, such as univalence, multivalence, chromosome bridges, lagging chromosomes, non-equivalent division, and micro-nucleus, etc. were also observed in the meiosis of pollen mother cell.

在杉木花粉母细胞减数分裂过程中观察到一些异常细胞学行为，即单价体和多价体、染色体桥、滞后染色体、不均等分离、微核等异常现象。

The karyotype of Nelumbo nucifera during meiosis zygotene was established in this study,which would help the studies of meiosis and molecular cytogenetics in lotus.

本研究建立了中国莲偶线期染色体的核型，为研究莲的减数分裂过程及分子细胞遗传学研究提供基础。

The investigation of the function of FtsZ protein in Nicotiana tabacum will found a good foundation for us to know the molecular mechanism of chloroplasts division and the origin and evolution of eukaryotic cells.

将会为进一步认识叶绿体分裂的分子机制以及真核细胞的起源和进化等问题打下坚实的基础。

In the ICH experiments, we found about 84% of the cells that have the positive staining of p53 nucleoprotein are in the division phase, showing the nucleus shape is big and irregular.

在免疫组化实验中，我们发现p53核蛋白表达呈阳性的细胞，几乎都是核大而不规则，明显处于分裂期的细胞；且随着分期的增加，这种细胞所占的比例越大。

It was found that there was a close relationship between the amount of PMN infiltration and the mitotic index of epidermal cells or the amount of parakeratosis.

发现了银屑病表皮细胞有丝分裂指数或角化不全的细胞数量分别与多形核白细胞浸润数量之间存在着密切的关系。

In rare cases, mild nuclear pleomorphism, prominent nucleoli and mitotic figures may be seen.

少数病人可见多形性胞核、突起的核仁和有丝分裂像。

It is thought to regulate the growth and development of the pollen tube.

另外的粉管核会在花粉管穿过珠心时发生分裂。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐