人类美人尖等4对性状的调查及遗传分析

Investigation and Genetic Anglysis of Man Four Characters

通过对人类群体美人尖、10指自然相嵌、大拇指弯曲度及酒窝4对性状的调查，并对调查结果进行了统计、分析。结果表明：这些性状是受遗传基因控制的，美人尖对无美人尖为显性；10指自然相嵌中右拇指在上对左拇指在上为显性；没有酒窝为显性，有酒窝为隐性；大拇指不弯为显性，弯曲为隐性。

Four characters of protruding hair on forehead, natural crossing of 10 fingers, Thumb winding angle and dimple were investigated. The statistical results showed that these characters were controlled by genetic genes protruding hair on forehead, right thumb above Left thumb, thumb erect and not having dimple were dominant to flat hair on forehead. Left thumb above right thumb, thumb winding and having dimple, respectively.