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Observation and Analysis on Mutation of Routine STR Locus
Author(s): 
Pages: 86-89
Year: Issue:  2
Journal: JOURNAL OF FORENSIC MEDICINE

Keyword:  短串联重复序列(STR)突变测序复制滑动;
Abstract: 目的观察与分析常用STR基因座突变的特点.方法从1 211例确定亲子关系的案例中收集到27个突变基因.用银染法和荧光标记试剂盒复核,并作序列测定证实.结果27个突变基因出现在15个基因座,突变方式符合步移突变模型.男女性别比例8:1.突变率与父亲年龄正相关.结论突变率与基因座各等位基因均一重复单位个数的几何平均数相关,数值高的突变率较高,亲子鉴定中应谨慎使用.
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