Sunday, August 28, 2016

How DNA Left at Crime Scenes Could Help 'Recreate' Faces of Criminals

The discovery of the genes that determine human face shapes could provide valuable information about a person's appearance using just DNA left behind at the scene of a crime.

The face shapes are based on a DNA analysis of 20 facial characteristics measured from 3D images of 3,118 healthy volunteers of European ancestry and almost a million mutations, or SNPs (single base pair) variations.

Dr John Shaffer, of the University of Pittsburgh, said: "There is a great deal of evidence genes influence facial appearance.

"This is perhaps most apparent when we look at our own families, since we are more likely to share facial features in common with our close relatives than with unrelated individuals.

"Nevertheless, little is known about how variation in specific regions of the genome relates to the kinds of distinguishing facial characteristics that give us our unique identities, e.g. the size and shape of our nose or how far apart our eyes are spaced.

- More Here

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