到1983年为止,已清楚人类存在3,000种以上遗传性疾病。在这些遗传病里,对几种目前能有效治疗的疾病已建立能应用于新生儿检查的早期诊断法,在日本也正在普及。对于尚无有效治疗方法的疾病,也在尝试通过羊水检查来预防有严重障碍的患儿出生。在这一背景下,伴随着近年来基因工 As of 1983, it is clear that there are more than 3,000 genetic diseases in humans. In these genetic diseases, early diagnosis methods that can be applied to newborn examination have been established for several currently effective treatments and are also becoming available in Japan. In the absence of effective treatment of diseases, but also try to go through amniocentesis to prevent the birth of children with serious disorders. In this context, along with genetic engineering in recent years