论文部分内容阅读
到1987年为止,全世界已知的遗传性疾病多达4000余种,根据国家统计局的资料,我国11亿人口中残疾人有5100多万,其中智能落后者计2000多万.1988年全国监测出生缺陷率为13.07%因此在控制人口数量的同时,必须提高人口的质量.改善人类遗传的素质称为优生.遗传素质系指体格上和智力上各种遗传性状的总和.而遗传性状不单和遗传而且也与环境息息相关.人类在器官形成过程中由于内外因素的作用。导致形态结构或功能上的缺陷称先天畸形.畸形的形成与胚胎发育有密切的关系.
As of 1987, there are as many as 4,000 hereditary diseases known in the world. According to the statistics of the National Bureau of Statistics, there are more than 51 million disabled persons in China’s 11 billion population, of which there are more than 20 million intelligent laggards. In 1988, Monitoring birth defects rate of 13.07% Therefore, population control in the population at the same time, we must improve the quality of the population to improve the quality of human genetic known as eugenics .Genetic quality refers to the physical and intellectual totality of genetic traits. And genetic but also with the environment is closely related to human beings in the process of organ formation due to internal and external factors. Leading to morphological structure or functional defects called congenital malformations. The formation of deformity and embryonic development are closely related.