ObjectiveTo study the polymorphism at D7S21 locus in Hebei Han population, provide basic information for construction of DNA fingerprint database and apply these to the practice of forensic medicine.
目的探讨D7S2 1位点在河北汉族人群分布的多态性，为DNA指纹数据库的构建及其法医学应用提供基础资料。
ObjectiveTo study the polymorphism at D7S21 locus in Hebei Han population, provide basic information for construction of DNA fingerprint database and apply these to the practice of forensic medicine.
目的探讨D7S2 1位点在河北汉族人群分布的多态性，为DNA指纹数据库的构建及其法医学应用提供基础资料。
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