本实验对生活在捷克三个不同地区的新生儿的血样进行了细胞遗传学研究.A区有很多化工厂和煤矿.B区无工业,是发达的农业区.C区是首都布拉格南部的一个地区.采集出生后三、四天新生儿的血液.这些新生儿的母亲在妊娠期间一直在该地区生活,未服用过任何药物,未进行过射线照射,也无感染史.每份血样同时用常规方法和荧光G带(SCE)技术进行分析.前者培 This experiment conducted a cytogenetic study of blood samples from newborns living in three different regions of the Czech Republic, with a number of chemical plants and coal mines in Area A. There was no industrial area in Area B, a well-developed agricultural area, which is one of the southern districts of the capital, Prague Region to collect blood from newborns three to four days after birth whose mothers have lived in the area during pregnancy without any medication, no radiation exposure and no history of infection.All blood samples were taken simultaneously Conventional methods and fluorescence G banding (SCE) techniques were used to analyze the former