genetic fingerprinting
noun [ U ] uk/dʒəˌnet.ɪk ˈfɪŋ.ɡə.prɪn.tɪŋ/ us/dʒəˌnet̬.ɪk ˈfɪŋ.ɡɚ.prɪn.tɪŋ/
基因指纹鉴定;基因图谱分析;遗传指纹法
the process of recording and/or examining a person's pattern of genes, often to prove that they did or did not commit a crime