山西汉族拇指类型、环食指长、扣手、交叉臂及惯用手的研究

调查了山西汉族拇指类型、环食指长、扣手、交叉臂及惯用手等五项人类遗传学经典指标，结果显示：(1)环食指无性别间差异，扣手、拇指类型、惯用手、交叉臂等男女间存在显著性差异；(2)扣手、拇指类型、惯用手、交叉臂、环食指等性状存在地区间差异；(3)拇指类型、惯用手以及环食指三对性状的基因频率和基因型频率；(4)惯用手与扣手间存在明显的相互关系，扣手与交叉臂以及惯用手与交叉臂之间则无关．

Study of Pollical Type, Palmar Digitalformula, Hand Clasping, Arm Folding and Handedness in Han Nationality of Shanxi Province

It was investigated 5general indexes of anthropological genetics including pollical type,palmar digital formula,hand clasping,arm folding and handedness in Han nationality of Shan-xi province.The results showed as follows:(1) There were significant sexual differences in the pollical type,hand clasping,arm folding and handedness,while palmar digital formula revealed no significant sexual difference;(2) There were significant district differences in the hand clasping, pollical type ,palmar digital formula ,arm folding and handedness;(3).The gene frequency and proportion of gene type for pollical type ,palmar digital formula and handedness were calculated;(4) There was obvious correlation between handedness and hand clasping,but no relation between handedness and arm folding, arm folding and arm folding.