从江西、浙江、福建三省８个畲族家系３１个个体中抽血提取ＤＮＡ，用ＰＣＲ技术对其ａｐｏＢ基因多态性位点进行扩增。结果表明：所有子代的扩增片段均可从父母的扩增片段中找到来源，子代为纯合子者，其父母的扩增片段中至少有一条相同，纯合子父亲的扩增片段在几个子代中同时出现。实验证明：畲族人群ａｐｏＢ基因的多态性遵循孟德尔定律。 DNA was extracted from 31 individuals of 8 She ethnic families in Jiangxi, Zhejiang and Fujian provinces. The apoB gene polymorphism was amplified by PCR. The results showed that all the amplified fragments of the offspring could be found from the amplified fragments of parents, whose offspring were homozygous, at least one of the amplified fragments of their parents was identical, and that of the homozygous father was in several Generation at the same time. Experiments show that: shes crowd apoB gene polymorphism follow Mendel’s law.