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- chromatid nondisjunction 染色单体不离开
- 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。
- 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。
- 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)。
- Alternatively, like allopolyploids, they may arise by the nondisjunction of chromatids during the mitotic division of a zygote. 与异源多倍体相似的是，它们也是在有丝分裂中合子的染色单体不分离形成的。
- The standard practice is to call the entire structure a chromosome and each of its strands a sister chromatid. 标准的做法是把整个结构称为一个染色体，而把它的各条称为姐妹染色单体。
- Results 64% of oocytes were normal, 36% of oocytes were aneuploidy, of which 22% were due to nondisjunction and 14% unbalanced predivision. 结果64%25的卵细胞核型正常,36%25的卵细胞为非整倍体,其中22%25为同源染色体不分离,14%25为姐妹染色单体非平衡性过早分离。
- Study on the impact of trinitrotoluene on sister chromatid exchange of Mocaca mullatta peripheral blood lymphocyte. 三硝基甲苯对恒河猴外周血淋巴细胞姐妹染色单体互换的影响。
- Autopoly-ploids may arise from the fusion of diploid gametes that have resulted from the NONDISJUNCTION of chromosomes at meiosis. 同源多倍体通常可能来自在减数分裂过程中染色体不分离导致的二倍体融合。
- At anaphase the dicentric chromatid will form a bridge and the acentric a fragment, both of which can be scored. 在后期双着绿点染色体将形成一个桥，无着绿点染色体单体形成一断片，此两者均可记录下来。
- Methods:The sister chromatid exchange (SCE) test in mice spermatogonia was used in the study. 方法:采用小鼠精原细胞姐妹染色单体交换实验。
- The spirally coiled central filament of a chromatid along which the chromomeres are aligned. 染色线，染色丝染色单体的中间丝状体螺旋盘绕在排成一列的染色粒上
- The standard practice is to call the entire structure a chromosome and each of its strands a sister chromatid . 标准的做法是把整个结构称为一个染色体，而把它的各条称为姐妹染色单体。
- Nondisjunction of chromosome 21 is much more frequent than loss in vivo and in vitro.No significant difference in nondisjunction between male and female was noted. 21号染色体不分离与年龄的关系极显著，无论在体内还是体外，21号染色体不分离远远高于丢失。
- To investigate the incidence of sister chromatid exchange ( SCE ) and its influencing factors. 探讨影响姐妹染色单体互换(SCE)频率的因素。
- Objective: To study the changes of sister chromatid exchange(SCE) rate in the mutator cell of tumor cell and mutagenized by drug or teratogen. 目的:了解在肿瘤细胞中、一些药物、致畸物引起的突变细胞中姐妹染色单体交换(SCE)率的变化。
- And also did the rate of chromosome aberrance(CA),sister chromatid exchange(SCE) and micronuclie cell (MC) of peripheral blood(P>0.05). 接触组外周血淋巴细胞染色体畸变率(CA)、姐妹染色单体互换率(SCE)、微核率(MC)与对照组比较;差异均无统计学意义(P>0.;05)。
- The central axial area of each chromatid is a low electronic density region or chromatin free compartment , in which there are lots of RNP. 在染色体横切面中,可见染色体中央有一低电子密度的无染色质区,该区内有大量RNP物质。
