英汉词典

1.Several studies have shown that SO2 and its derivatives could induce chromosomal aberrations, sister chromatid exchanges and micronuclei in human blood lymphocyte, bone marrow cell in mice and CHL.

研究发现，SO_2及其衍生物可引起人外周血淋巴细胞、小鼠骨髓细胞、中国仓鼠肺成纤维细胞等哺乳动物细胞的染色体畸变、姊妹染色单体交换及微核的形成。

2.Conclusion it is recommended that sister chromatid exchange test is an effective in vitro detecting method for mutagenicity of dental materials.

结论体外姐妹染色单体互换试验可推荐作为一项检测口腔材料潜在致突变性的体外评价方法。

3.Structurally, the aberrations of the chromosome-type break, chromatid break, double minute chromosome were also remarkably different (P<0.01).

在结构上，染色体型断裂、染色单体型断裂、双着丝粒、双微小体这些畸变，差异也非常显著（P<0.01）。

4.Methods:Sister chromatid exchange(SCE) was sued in human lymphocytes and plant root tip cells.

方法：蚕豆、大麦和人外周淋巴细胞姐妹染色单体交换（SCE）。

5.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。

6.The types of the structural chromosome aberration mainly were chromatid gap, chromatid break and deletion.

结构畸变类型主要是单体裂隙、单体断裂和缺失。