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遗传病是指由于生殖细胞或受精卵里的遗传物质在数量、结构或功能上发生改变,从而使由此发育成的个体罹患疾病,它不同于一般非遗传性家族性疾病。遗传病主要分为基因病和染色体病。基因病是由于基因在数量上、质量上或作用上的改变所引起。
Genetic disease is defined as the number, structure or function of a genetic material in a germ cell or a fertilized egg that causes the individual to develop a disease that is different from a general non-hereditary familial disease. Genetic diseases are mainly divided into genetic diseases and chromosomal diseases. Genetic disease is due to the quantitative, qualitative or functional changes in the gene.