Have you met your doppelganger? New research shows the likelihood that most people have an unrelated 'twin' out there somewhere on the planet with similarities more than physical resemblance.
suggest those genetic similarities might extend beyond just facial appearance. DNA analysis based on the new work could one day help doctors identify a person's hidden risks for certain diseases and even help law enforcement officials target criminals through biometric forensics, the researchers say.
To answer that question, Esteller's team recruited 32 pairs of people from Brunelle's photo sessions to take DNA tests and complete lifestyle questionnaires. The researchers also used facial recognition software to assess their facial similarities from headshots. "We found that the genetic sites shared by the look-alike corresponded to four categories," he says."Genes previously reported to be associated with the shape and form of the eyes, lips, mouth, nostril, and other face parts using general population studies; genes involved in bone formation that can relate to the skull shape; genes involved in distinct skin textures; [and] genes involved in liquid retention that can give different volumes to our face.
"It is said that our face reflects our soul," Esteller says."Being less poetic, our look-alike answered a large questionnaire to grasp their physical and behavioral profiles. We observed that those look-alikes with high concordance in the facial algorithms and genetic commonalties not only shared the face, but also other features...."
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