减数

In mitosis, a Mad1-Mad2 core complex recruits cytosolic Mad2 to kinetochores through Mad2 dimerization and converts Mad2 to a conformer amenable to Cdc20 binding, thereby facilitating checkpoint activation.

在减数分裂中，Mad1-Mad2核心复合物通过Mad2二聚化募集胞质Mad2至动粒，并转变Mad2成为能被Cdc20结合的形态，因此促进检验点的活化。

The reduction of chromosomes in the hybrid and the high numbers of bivalents were possibly due to the chromosome of Crambe abyssinica eliminating and the genome of Brassica.

杂种PMC减数分裂中，平均配对构型为0.06Ⅲ+11.26Ⅱ+3.80Ⅰ，二价体数目变化于8～13之间，以10Ⅱ、11Ⅱ、12Ⅱ的细胞出现频率较高，分别为26.60%，23.91%和30.98%，单价体数目变化于0～8个之间。

Due to the deficiency of cyclin B1 and 〓, spermatogonia and pachytene/diplotene primary spermatocytes in contralateral cryptorchid testis were unable to form MPF, and therefore, they could not accomplish their nuclear division, and became arrested at the transition stage from mitosis to meiosis (G2/M phase). We also found that testosterone could regulate the cyclin B1 expression in spermatogenic cells.

由于cyclin B1和〓的缺失，粗线期/双线期初级精母细胞中的MPF无望形成，从而导致生精细胞分裂停滞在由有丝分裂向减数分裂过渡的G2/M相；（5）睾酮可在翻译水平上调控阴囊内睾丸生精细胞cyclin B1蛋白的表达。

The GDP deflator shows how much a change in the base year's GDP relies upon changes in the price level.

GDP平减数能显示出基准年GDP的变动受到价格变动影响的程度

Diakinesis The last stage of the PROPHASE in the first division of MEIOSIS.

终变期：减数分裂第一次分裂前期中的最后一个阶段。

The results of our study have demonstrated that,(1) quadrivanlents in diakinesis Ⅰ are ideal materials for micromanipulation;(2) compared with the instrument used to microisolate chromosomes with a dissecting needle perched on a dissecting microscope outfitting with a micromanipulator or laser beam, the equipment most common used in our study is relatively inexpensive and the techniques could be established as a standard procedure in the ordinary laboratory;(3) the gene mapping methods developed in the study is an efficient and fast approach that could advance gene mapping of fish and other species.

本研究结果表明，（1）减数分裂Ⅰ终变期染色体标本是进行染色体显微操作研究的理想材料；（2）与显微操作仪和微激光分离相比较，本研究所探索的显微分离染色体方法不需要昂贵仪器，在常规实验室即可操作，具有广泛的普及应用意义；（3）把染色体显微操作应用于基因定位这种构思是完全可行的。这种基因定位方法简明而快捷，从而为鱼类及其它物种染色体定位研究开辟了一个新的研究方式和途径。

At diakinesis, 0.2 tetravalents, 0.05 hexavalents and 0.05 octovalents per pollen mother cell were detected, which was absent in cultivated cucumber. In 30% PMCs, crossed chromosomes occurred at diakinesis.

在减数分裂终变期，平均每个花粉母细胞有0.2个四价体、0.05个六价体和0.05个八价体，约30%的花粉母细胞中存在拉十字的染色体。

In Peiai 64S, the microtubules showed abnormal patterns of distribution from pre_meiotic interphase to metaphase Ⅰ. For example the broad band of perinuclear microtubules seen at diakinesis in IR36 was much disorganized and loosened in Peiai 64S.

(1)在偶线期具极性分布的微管分布不存在；(2 )在小孢子母细胞减数分裂期间的细胞内出现许多特别粗的微管束；(3)在终变期围绕核的微管宽带结构松散及内含微管密度低。

In evl-14 mutant animals, synaptonemal complexes were detectable at the pachytene arrest, but more than the usual six DAPI-staining positive structures were seen in diakinesis, suggesting that EVL-14/PDS-5 is important for the maintenance of sister chromatid cohesion in the late prophase.

这一结果提示EVL-14／PDS-5对于在减数分裂的晚前期维持姐妹染色单体粘连是十分重要的。

According to the number and behavior of B genomechromosomes, all hybrid plants were classified into three types. All somatic cells of TypesⅠplants contained 16 B genome chromosomes which formed 8Ⅱat diakinesis and shown8:8 segregation at anaphase; TypesⅡcontained 14 B genome chromosomes whichformed 6Ⅱ+2Ⅰat diakinesis and showed 6:8 or 7:7 segregation at anaphase. TypesⅢcontained above two chromosomes number and behavior.

同时根据B基因组DNA为探针的GISH结果，以细胞中B基因组染色体的数目及减数分裂时的配对及分离的方式，将所有杂种植株分为三大类：Ⅰ类具有16条B基因组染色体，以8Ⅱ的方式配对，以8：8分离，共32株；Ⅱ类具有14条B基因组染色体，以6Ⅱ+2Ⅰ方式配对，以7：7或者6：8的方式分离，共4株：Ⅲ类植株包含有上述两种细胞类型类型，共1株。

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。