DNA. It's what makes you unique. Unless you have an identical twin, your DNA is different from that of every other person in the world. And that's what makes DNA fingerprinting possible. Experts can ...
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Our fingerprints are totally unique—but scientists still have no clue what evolutionary function that serves
Long before memory forms, the hands already carry a permanent signature that everyone carries around. Fingertips develop looping ridges while the body measures only inches long, shaped by forces too ...
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