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目的探讨广西壮、苗族人5项人类遗传学经典指标的规律。方法对聚居于广西的1046名壮、苗族学生进行调查。结果(1)广西壮、苗族R型扣手、R型交叉臂和R型惯用手百分率,民族间差异均无显著性(P>0.05):扣手和交叉臂与性别无关;(2)广西壮族环指长和直型拇指类型百分率均高于苗族,差异有显著性或高度显著性(P<0.05或P<0.001);(3)苗族男性环指长百分率高于女性,壮族女性直型拇指类型百分率高于男性(P<0.05)。结论广西壮、苗族人扣手、交手臂、惯用手、环食指长和拇指类型有其规律性。
Objective To investigate the laws of five classical genetics of human genetics in Guangxi Zhuang and Miao nationality. Methods A total of 1046 Zhuang and Miao students living in Guangxi were investigated. Results (1) There was no significant difference in the percentage of R-type clasps, R-type cross arms and R-type dominant hand among ethnic groups in Zhuang and Miao of Guangxi (P> 0.05). (2) Guangxi Zhuang ring and straight thumb type percentage were higher than the Miao, the difference was significant or highly significant (P <0.05 or P <0.001); (3) Miao male ring finger length percentage higher than the female Zhuang straight female The percentage of thumb type was higher than that of male (P <0.05). Conclusion Zhuang and Miao people in Guangxi Zhuang and Miao clasping hands, hand arm, dominant hand, ring finger and thumb type has its own regularity.