脆性位点 meaning in Chinese

fragile site

Fxs is mainly caused by a kind of dynamic mutation , the expansion of a cgg repeat located in the 5 ' - untranslated region ( 5 ' - utr ) of the fmr1 ( fragile x mental retardation ) gene
该综合症由患者细胞中可见xq27 . 3的脆性位点fraxa而得名。绝大多数脆性x综合征患者的发病是由于fmr1基因5端非翻译区的三核苷酸cgg重复的不稳定扩增所致。
To detect the patients and carriers of the fragile x syndrome , various analytic methods could be used . one is cytogenetic diagnosis to observe the expression of the fragile site fraxa located at xq27 . 3
对脆x综合征的诊断，可以通过细胞遗传学方法观察分析x染色体相应脆性位点的表达情况，或是通过southern印迹杂交的方法直接分析cgg重复的扩增突变。