Objective To establish a multiplexing Y-STR system and study haplotype frequencies of 4 Y-specific loci in China Han population.

目的建立复合扩增y - STR基因座的体系，获得中国汉族人的单倍型频率。

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Objective To establish a multiplexing Y-STR system and study haplotype frequencies of 3 Y-specific loci in Guangdong Han population.

目的建立复合扩增Y-STR基因座的体系，获得广东汉族人的单倍型频率。

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