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From
io9
We all know that DNA evidence can make or break a forensic investigation, but it's not uncommon for police to encounter DNA at a crime scene that doesn't match with entries in any DNA databases.
"A3"
Eye color can be told by Dna.
A team of Dutch scientists has now developed a genetic screen, called IrisPlex, that can help police determine with 94% accuracy whether a suspect has blue eyes or brown, just from a sample of their DNA. Is this the dawn of a new era in forensic investigation?
IrisPlex works by searching for single-letter differences in your genetic code called single nucleotide polymorphisms, or SNPs, that are strongly linked to eye color; the genetic screening kit searches for six of these SNPs in total, labeling them as blue, brown, or undefined (undefined corresponding to an intermediate color like green or grey) as it evaluates the DNA under scrutiny.