中期分裂

C-banding analysis of satellites in 9 accessions of Ae.tauschii native to China was carried out with C-banded miotic interphases,prophases and metaphases,The results showed that the c-banded heterochromatin of satellites of Ae.tauschii did not change in size during the whole miotic stage and novariaton was observed among plants and cells within a accession,while polymorphism in c-banded satellites between different accessions was found.

5D染色体是节节麦整个染色体组中唯一的1对随体染色体，其随体位于5D短臂的末端。对来源于中国的9个不同的节节麦居群的吉姆萨C带分析表明：同一份节节麦居群内不同植株或不同细胞，这个端部随体在整个有丝分裂前期、中期和间期都很稳定，表现为大小、强弱一致的端部特征带。

However,the normal controls seldom showed metaphase multipolar mitoses and centrosome amplification,with the average frequencies of（0.8±0.9）%and（1.2±1.4）%separately.

而正常对照组细胞仅偶尔出现异常分裂中期形态及异常的中心体数目，其平均值分别为（0.8±0.9）%和（1.2±1.4）%。

However,the normal controls seldom showed metaphase multipolar mitoses and centrosome amplification,with the average frequencies of（0.8±0.9）%and（1.2±1.4）%separately.

而正常对照组细胞仅偶尔出现异常分裂中期形态及异常的中心体数目，其平均值分别（0.8±0.9）%和（1.2±1.4）%。

Karyotypes of root tip chromosome showed that the arm volume ratio, the mean relative volume and idiogram were identical before and after improving seed vigor, so the pattern of chromosome did not change. But we couldnt confirm whether the pattern of other separation dates and the inner structure varied in this experiment, such as gene mutation.

根尖染色体核型分析结果，甘蓝种子在活力提高前后染色体的臂比值相同，相对长度相同，表明活力提高后染色体在形态及核型上无明显变化，而对于除中期外的其它分裂期染色体的形态特征以及染色体内部结构有无明显变异在本试验条件下尚不能确定。

Chromosomes Well-spread and clear metaphase chromosomes of carrot were obtained, after the pretreatment of root tips in vivo with two chemicals, cycloheximide and p-dichlorobenzene.

染色体观察用对二氯苯和放线菌酮40×10~(-6g·L-1的混合药剂胡萝卜根尖，通过压片获得了分散良好、形态清晰的有丝分裂中期染色体。

Using the technique of natural aging,chloroform and EDTA treatment,well-resolved G-banding patterns were successfully obtained in Rana plancyt's mitosis chromosome firstly.The G-banding patterns appeared distinctive.

采用自然老化、氯仿处理及EDTA显带法，首次在金线蛙有丝分裂中期染色体上成功显示出G带，带纹反差强烈、特征鲜明。

We synchronized the wheat cell suspension cultures, then added Novobiocin—an inhibitor of TopoⅡ to the cell suspension, changs of the ratio of M/T were observed within 48 hours.

用aphidicolin使小麦悬浮系细胞同步化，然后向细胞培养液中加入TopoⅡ抑制剂新生霉素，48小时内观察分裂中期细胞比率的动态变化。

Pig oocytes cultured in vitro for some time were inseminated by frozen–thawed ejaculated sperm. At specified times after insemination, sperm penetration, cell cycle progression and mitogen-activated protein kinase phosphorylation were evaluated. It was shown that:(1) oocytes at various maturational stages could be penetrated by sperm;(2) sperm penetration did not affect meiotic cell cycle progression;(3) sperm penetration of germinal vesicle oocytes and maturing oocytes did not alter MAPK phosphorylation; and (4) when premetaphase I and metaphase I oocytes, in which MAPK was activated, were fertilised, no evident MAPK dephosphorylation was detected as in metaphase II oocytes.

不同成熟阶段的猪卵与精子融合后体外培养发现：(1)不同成熟阶段的猪卵母细胞都可被精子穿透；(2)精子穿透不影响减数分裂细胞周期进程；(3)精子穿透GV期卵母细胞和正在成熟的卵母细胞不改变MAPK磷酸化：(4)已受精的前中期I和中期I卵母细胞的MAPK有活性，MAPK不像MII卵母细胞那样受精后发生磷酸化。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。