I have seen some dumb movies in which a kid grows up and looks exactly like his father . I know some twins do that but is there any chance of this happening between a father and his son or somethin ? Even though it has probably never happened (or has it ?) is there a chance it could happen theoraticaly ?

  • cynar@lemmy.world
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    7 months ago

    Absolutely identical, no. Even identical twins often have slight differences. Similar enough to cause confusion, definitely.

    I was once shown a picture of me on a rock, by the sea. It was obviously me, but I couldn’t for the life of me remember a holiday it fitted. It turned out the picture was of my grandfather. We were apparently similar enough, at least at that age, for me to mistake him for me!

    As for the why.

    Our various characteristics are controlled by genes. We get 2 copies, 1 from each parent. However, not all genes are created equal. Genes can be dominant or recessive. E.g. brown hair is dominant , while blond hair is recessive. To be blond, you have to have all blond genes. To be brown haired, you only need 1.

    Most characteristics are controlled by a number of different genes. However, most have a few dominant controlling genes. If you happen to have a father with a large number of dominant genes, paired with a mother with more recessive genes then you can get a doppelganger for the father. This can become more likely if the 2 parents are loosely related, since the mother is likely to carry a similar set of genes to the father.

    • AFK BRB Chocolate@lemmy.world
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      7 months ago

      This is a good response. The key part of OP’s question is “look like.” There are lots of examples of people who realize the look just like their parent at the same age. If you did an inch-by-inch analysis, you’re likely going to find subtle differences, and that’s true even with identical twins. But we know it happens that people will “look like” a carbon copy.

    • Aussiemandeus@aussie.zone
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      7 months ago

      Haha i saw a picture of me on a rock by the sea on my wife’s phone, i was very confused and asked her how she had this photo of my dad.

      We look very similar now especially if im wearing my akubra as the only difference is my hair is still on top of my head and his isn’t.

      And he’s dead RIP