You have a really good point. Never read what your said, anywhere.
Thought of it about a decade ago when I came up with a sci-fi short story about a murder scene with 3 sets of DNA found at the crime scene with no bodies. At that time the DNA was used to create their images and a man and a woman were identified but the second woman was unknown. Her DNA showed that it was the child of the identified woman. “They” have created software that will make a 3D image.
http://www.fastcoexist.com/1681326/these-3d-portraits-were-created-using-only-a-persons-dna
I’m sure I’m not the only one who thought of it, but 99.9% wouldn’t say it out loud.