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- nonsister chromatids 非姐妹染色单体
- nonsister chromatid 非姐妹染色单体
- Having several central parts,such as centrosomes or chromatids. 多中心的具有几个中心部分的,如有几个中心体或染色单体的。
- Having several central parts, such as centrosomes or chromatids. 多中心的具有几个中心部分的,如有几个中心体或染色单体的
- The formation of chromatid cores is not directly related to the SC. 染色体轴的形成与SC的侧轴无直接的相关性。
- Each chromosome consists of two chromatids held together by the centromere. 每个染色体由两个染色单体所组成,它们被一个着丝点联结在一起。
- Choosing the proper objective and observing the numbers of chromatid breaks. 为喉癌、鼻咽癌患者的一级亲属;
- Apparently,it is disconti nuous between the SC and the chromatid core. 这 两种轴结构之间很明显不是连续的。
- In meiosis, the association of four homologous chromatids seen during the pachytene stage of prophase. 减数分裂前期的粗线期中,四个同源的染色单体向联系形成的结构。
- Anaphase The stage in mitosis or meiosis when chromatids are pulled toward opposite poles of the nuclear spindle. 后期:在有丝分裂或者减数分裂过程中染色单体分别朝相反的两极运动。
- During mitosis, sister chromatids remain joined by their centromere until anaphase. 在有丝分裂期间,姐妹染色单体在分裂后期之前都是通过着丝点连接的。
- At this point esch chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad. 此时每条染色体由一对染色单体构成,这两条联合的染色体称为四分体。
- Crossing over The exchange of material between homologous chromatids by the formation of chiasmata. 交换:同源染色单体之间形成交叉时遗传物质的交换现象。
- Following the replication of chromosomes, resultant chromatids remain attached at the centromere. 随着染色体的复制,着丝粒始终连接着形成的两个染色单体。
- The third stage of the prophase of meiosis during which the homologous chromosomes become short and thick and divide into four distinct chromatids. 粗线期在同周期的染色体群变短变粗并分裂为四个不同的染色单体过程中减数分裂前期的第三个阶段
- In meiosis it is not until anaphase II that the centromere divides, the chromatids being termed daughter chromosomes after separation. 在减数分裂期间,直到分裂后期II两条染色单体才随着着丝点的分裂而彼此分开。
- The sister chromatid exchanged (SCE) frequency among infertile men increased in different degrees (P<0.05). 男性不育者的姐妹染色单体交换率有不同程度的增高(P<0.;05)。
- The failure of paired chromosomes or sister chromatids to separate and go to different cells during meiosis. (染色体的)不分开,不分离在减数分裂过程中,成对的染色体或同型的染色单体不分离到不同的细胞中。
- Finally, spindle fibers pull the homologues apart. This leaves the sister chromatids intact. 最后,同源染色全在纺锤体的牵引下分开。这保证了姐妹染色单体的完好无损。
- During anaphase the fibers begin to shorten, and the chromatids begin to move apart. 在分裂后期,纤维开始变短,染色单体分离。