A team of Spanish scientists studied pairs of unrelated look-alikes (doppelgangers) and found that they not only bear a striking resemblance to each other, but also share significant parts of their DNA.
“It’s not unreasonable to assume that you, too, might have a look-alike out there,” he says.
“In the current study, we have explored the other side of the coin: people that have the same face, but they are not family related. These individuals helped answer the longstanding question of how our aspect is determined by nature and/or nurture.” The researchers then examined the DNA of those 16 pairs of look-alikes and found they shared significantly more of their genetic material than the other 16 pairs that the software deemed less similar in appearance – a finding the researchers said was “striking.”
While the doppelgangers’ DNA was closely matched, Esteller was surprised to find that the lifestyle surveys – assessing 68 variables – revealed major differences in the 16 pairs of people. These differences were almost certainly due to the environment and other parts of their lives and upbringing that didn’t have anything to do with their genetic makeup.
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