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microsatellite
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基因组中重复单位为2~6个核苷酸的串联重复序列。又称短串联重复(short tandem repeat, STR),重复次数变化大而可以在群体中形成多达几十种等位基因的现象称为短串联重复多态性。STR具有高度的多态性,因此是一类常用的脱氧核糖核酸(deoxyribonucleic acid, DNA)标记。
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