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>> it will not be as unique a profile as i might get from 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. >> halverson performed a pcr test, which stands for polymerase chain reaction. >> it's basically like taking one page out of a book and ignoring the rest of the book and xeroxing that page a million times. and now you have that page in so much quantity that you can see it. >> then the sample was sequenced to get a visual representation of the dna type. when she compared the dna from th...

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...