DNA

Abbreviation for deoxyribonucleic acid. A chromosome molecule which carries genetic coding unique to each person with the only exception of identical twins (that is why it is also called "DNA fingerprinting"). Through laboratory process, DNA can be extracted from body tissue such a strand of hair, semen, blood and matched against DNA discovered at a crime scene or on a victim to scientifically implicate an accused. Can also be used to match DNA between parents in a paternity suit.