一、任务 通过全国各地近亲通婚的调查,了解我国各地的近亲通婚率和近亲系数,了解近亲通婚对子代健康的影响,并推算我国群体的隐性致病基因频率。 二、方法 1、制订近亲通婚调查标准及调查方法。 2、在全国各地按统一标准分别进行调查。 3、将调查结果汇总整理分析。 First, the task Through surveys of inbreeding in all parts of the country to understand the inbreeding and kinship of close relatives across China to understand the effects of inbreeding on the health of offspring, and to infer the frequency of recessive pathogenic genes in our population. Second, methods 1, the development of in-laws investigation of marital standards and methods of investigation. 2, in accordance with uniform standards throughout the country were investigated. 3, the survey results summarized analysis.