Developments in forensic genetics may eventually render the old age question of ‘Whodunnit?’ redundant. Certain phenotypes (a person’s outward traits such as eye colour and hair colour) can now be predicted through DNA samples including blood, sperm and saliva. Professor Manfred Kayser, leader of the forensic molecular biology department atErasmus University Medical Centerand co-Editor-in-Chief of BioMed Central’s open access journalInvestigative Genetics, is making headlines around the world through his studies asCSIjumps from our TV screens into the real world.
A recent profile published inScienceexplains Professor Kayser’s career and how he ended up as an “upcoming star” in forensic DNA phenotyping.
Amongst Professor Kayser’s achievements, ‘Irisplex’ is a test developed by his group that can predict with over 90% accuracy whether someone has brown or blue eyes. More recently, theBBC websitereported on his research explaining how hair colour can also be identified with 90% accuracy for red or black hair and 80% for blonde or brown.
Professor Kayser’s group is currently working on the holy grail of DNA analysis – a computer-generated, DNA-based facial sketch. This would represent a landmark for crime scene investigations. However, Kayser is cautious about the possibility of this. In his interview with Science, he said: “On paper, it’s possible.”
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