identification of fragments of tissue

例句：

1. 1.The identification process involves comparing DNA samples to known individuals.
   鉴定过程涉及将DNA样本与已知个体进行比较。
2. 2. The police are conducting an identity check on the missing person.
   警方正在对失踪人员进行身份核查。
3. 3.The scientist identified the virus as a new strain of influenza.
   科学家将这种病毒认定为一种新型的流感病毒。