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Can Your DNA Reveal Your Face?

By Dplylemd
Can Your DNA Reveal Your face?

You've seen it on TV. The CSI-types plug in a DNA sample and like magic a 3-D, holographic image of the bad guy pops up like a ghost. Or some such stuff. Pretty far-fetched. Or is it?

DNA analysis is primarily used for comparison, meaning that a sample obtained from a crime scene is compared with a sample obtained from a suspect to see if the DNA from the scene belongs to the suspect, or not. This is how many cases are solved. DNA is highly accurate for making such comparisons.

But what if there is no suspect and therefore no DNA to compare with that obtained at the crime scene? The police will then go to databases such as CODIS to see if the perpetrator has DNA on file from previous crimes. Often this helps. Often a match is made this way. But what if the perpetrator is not in the system? The police are back to square one.

DNA can of course reveal the sex of the individual very easily. It can also often determine hair and eye color and other physical features. But can it give a "picture" of the individual who left the DNA behind? Not yet, but things are moving that way.

Here are a few fun articles on this technique:

DNA Phenotyping Recreates the Face of an Alleged Serial Killer: https://www.forensicmag.com/article/2016/08/dna-phenotyping-recreates-face-alleged-serial-killer

First DNA-Phenotyped Image of "Person of Interest" in Double Homicide: https://www.forensicmag.com/article/2015/01/first-dna-phenotyped-image-person-interest-double-homicide

Phenotyping and Cold Cases:
https://www.defrostingcoldcases.com/phenotyping-cold-cases/


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