细胞分裂

The micronucleus and abnormal division in Allium sativum root tips induced by polluted river water were investigated.

研究污染的河水对大蒜根尖细胞微核的诱导及细胞分裂的效应。

However, the mechanism will be verified in the further study. This study will be useful to understand the molecular mechanism of cytokinesis, which is the considerable evidence to support the iatric control of cell division and the pharmacology of tumor treatment.

本课题涉及的生物学问题的解决将有助了解胞质分裂调控的分子机理，这将对医学上控制细胞分裂以及肿瘤治疗的药理学都提供强有力的理论依据，具有极其重要意义。

Study on cellular divisional pattern of the A.

有丝分裂时细胞分裂的方式。

Similar roles of most of the expansin genes and XTH family genes were found in endocarp and/or pulp tissues of fruit, for their expression pattern are associated with the distribution of endoreduplication in different tissues of fruits.

CsExpl，4和XTH基因在分裂旺盛的果实发育前期表达较高，从而推测其在细胞分裂中的细胞壁修复和重建过程起重要作用。

Meiosis, which occurs only in the form ation of gametes, is a specialized form of cell division

仅仅发生在配子形成中的减数分裂是一种特殊形式的细胞分裂。

They are often morphologically distinct from A chromosomes, being smallerand more highly heterochromatic in most cases. B chromosomes do not pair with Achromosomes, and they are inherited in a non-Mendelian way, exhibiting meiotic andmitotic instability and nondisjunction. However, B chromosome DNA is quiteidentical to the corresponding sequence on the A chromosome complement. So far afew B chromosome specific DNA sequence have been identified. Specific DNAsequences on B chromosome have been the attractive research area on Bchromosomes.

现已在千余种植物和近三百种动物中被发现。B染色体与物种中正常染色体不同：独立于整倍体基因组之外，减数分裂时不与A染色体发生联会和配对，细胞分裂后期不分离，非孟德尔遗传，富含异染色质，不含对宿主主要性状有影响的基因等。B染色体DNA的分子组成既与A染色体极为相似，具有A染色体DNA分子组成的一般特征：富含重复序列和转座成分，染色体三大功能组件DNA高度同源；又与之相区别，含有B染色体特异的DNA序列，这些DNA序列可以为探讨B染色体的起源和进化提供有价值的信息。

Cell division in which the nucleus divides into nuclei containing the same number of chromosomes.

核子分裂为多个含有相同数量染色体的一种细胞分裂。

As with the male gametes the remaining cytoplasma binding serves the synchronization of the division and maturation of the cells: just as for the 1rst polar body at the time of the termination of the 2nd meiosis.

和雄性配子一样，这些残留的细胞质连接有助于细胞分裂和成熟的同步化：就像第二次减数分裂结束时的第一极体一样。

Recent studies have revealed that the FtsZ protein, known as a key com- ponent in prokaryotic cell division, is involved in chlo- roplast division process.

已经证明FtsZ 蛋白作为真核细胞分裂装置的一个关键成分，参与叶绿体的分裂过程。

Under the incubation conditions such as salinity of 32, temperature of 16℃ and light intensity of 6 000 lx (photonperiod of 12 h︰12 h LD), the first spore division occurred 22 hours after attachment, and further cell divisions formed a multicellular disk after 6 days. The disk which developed most quickly began to germinate burgeons after 80 days.

在水温16℃，海水盐度32，光照强度6 000 lx（光照周期为12 h︰12 h）条件下，鹿角海萝孢子附着后约22 h进行第一次细胞分裂，经过多次分裂，6 d后形成初期盘状体，发育最快的盘状体80 d后长出芽体。

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