CNN Forensic Files February 19, 2014 09:20:00
Blood or saliva or hair with a root. but it will still allow me to say, yes, this sample matches the reference dog or it doesn't match the reference dog. >> halvorson performed a pcr test which stands for polymerase chain reaction. >> it's basically like taking a page out of a book and xeroxing that page a million times. and now you have that page in so much quantity you that can see it. >> then the sample was sequenced to get a visual representation of the dna type. when she paired the dna from the hair in the ammunition box to a sample of kiesha's hair, she found a heplo type in both sets th...
Source: archive.org