DNA

Forensic scientists compared the DNA from the hair sample to the suspect's genetic profile.

(Chinese) 法医将头发样本中的脱氧核糖核酸（DNA）与嫌疑人的遗传特征进行了比对。

Identical twins share 100% of their DNA, which makes them genetically indistinguishable.

(Chinese) 同卵双胞胎拥有完全相同的脱氧核糖核酸，这使得他们在遗传学上无法区分。