Human DNA Testing to Identify a Single Individual at a Crime Scene is Not As Easy As It Seems

According to Daniel Drell of the U.S. DOE Human Genome Program, we need several factors to key into the personal DNA of any individual.  Drell uses the example of identifying a suspect at a crime scene to illustrate his point.

Suppose a blood sample was found at the crime scene and that sample was type O.  It is a start, but not the end of the process, type O is found among 45% of the human population.  Supposing a blond hair was found at the scene of the crime as well, this additional information is necessary information however, there are still many people with blond hair who have the typ... From: <a href='http://factoidz.com/human-dna-testing-to-identify-a-single-individual-at-a-crime-scene-is-not-as-easy-as-it-seems/' title='Scientists will test bone, body tissue, body products such as saliva, blood, and hair to do identify the DNA present in any individual. It is quite interesting to note that only one-tenth of a percent of DNA will differ among individuals. When we go back to our crime scene evidence, scientists must match the DNA evidence found at the scene with the suspect.'>Human DNA Testing to Identify a Single Individual at a Crime Scene is Not As Easy As It Seems</a>

With Warmest Regards,

Dr. Harmander Singh (B.Sc. in Sci-Math-Edu, MD, PhD in AM)
Patiala (Punjab) Factoidz Writer and in LD Advisory Board
Published Author of more than 15 books: Lulu

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