摘要
本文对307对同性别双生子的骨龄、身高和体重进行了研究。结果表明,骨龄、身高和体重均受遗传因素影响。遗传因素对不同年龄阶段的影响程度可能是不同的。长时间的不同环境因素对身高和体重的影响较骨龄更大。
A total number of 307 pairs of twin of the same sex aged 6 to 14 were investigated. The result shows that the proportion of twins among the primary pupils was 0.39%. The propor-tion of MZ twins was 54.12%, while the proportion of DZ twins was 45.88%. The skeletal age, height and weight were all genetically determined, with a heretability of 79.3%, 36.5% and 78.2% respectively. The genetic factors might influence these indexes differently in different age groups. Various environmental factors lasting for a long time have greater effect on height and weight than on skeletal age.
出处
《人类学学报》
1987年第2期131-138,共8页
Acta Anthropologica Sinica
关键词
双生子
遗传
骨龄
身高
体重
Twin
Genetics: Skeletal age
Height
Weight
