目的调查DXYS267基因座遗传多态性，研究该座位伴性遗传单核苷酸的特征及其法医学应用价值。
Objective To investigate the polymorphism of DXYS267 locus in China Han population and find the application and characters of its Y-specific single nucleotide substitutions.
目的研究D2S1399和D5S2500基因座在中国华东地区汉族群体遗传多态性。
Objective To obtain the genetic polymorphism data of two STR loci D2S1399 and D5S2500 in Eastern Chinese Han population.
对单亲案的亲权鉴定，检测的多态性基因座要在8个以上。
For the purpose of identifying paternity in cases of absence of mother, more than 8 polymorphic DNA loci must be tested.
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