海南琼海汉族4项人类群体遗传学指标的研究

Study on 4 Human Population Genetic Characters of Han of Qionghai in Hainan

本研究调查了海南琼海372例(男220例,女152例)汉族中学生的4项人类群体遗传学指标.研究结果如下:(1)环示指长出现率在男、女性别之间存在显著性差异,其他3项指标男女间均不存在显著性差异.(2)琼海汉族过伸型拇指、环指长、拇趾长率在我国族群中居较低水平;扁型指甲率则在我国族群中居中等水平.(3)琼海汉族与手足相关的4项指标间相关性较小.

A sample of 372 middle school students （220 males, 152 females）of Han was investigated on 4 human popula- tion genetic characters. The results were as follows ： （ 1 ） There was significant sexual difference on palmar digital fomu- la. （2） The hyperextension thumb, ring finger and great toe of Han had low percentage in Chinese ethnic groups, but the percentages of flat nail had the middle level in Chinese ethnic groups. （3） Correlations were little among 4 characters of hand and foot.