I am dumb, I am aware. If twins have the same DNA, are they the same person from a biological standpoint?

  • fossilesque@mander.xyz
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    1 year ago

    No, not even at a genetic level. This study, for example shows: “International researchers have compared the external ears of more than 1,400 people of multiple nationalities and found that the ear is as good an identifier of an individual as a fingerprint or DNA, and can even distinguish between identical twins.”

    • davidgro@lemmy.world
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      1 year ago

      That reads to me like the ears are affected differently by the environment (including in the womb). Also the numbers in that article suggest there are over 5 million “collisions” in which two people have ears that their test would say match.

      • cryshlee@lemm.eeOP
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        1 year ago

        That’s so crazy to me! But I’m guessing if they could match, there must be some margin of error in the test

        • davidgro@lemmy.world
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          1 year ago

          Indeed. Some of the margin of error is probably needed since I’m sure ears change over time on the same person if they are measuring that closely