• lemming@sh.itjust.works
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    11 hours ago

    For the record, this is almost certainly a genetic defect of the father, some kind of dominant mutation. Nutrition and other environmental factors most likely didn’t play any role in a height difference this big.

    There are two copies of each gene. Here, one of the copies got mutated in such a way that it caused the stunted growth of the father. Each sperm contains one randomly selected copy of each gene. Therefore half of the father’s sperms contained the mutated gene and the other half the normal version. There was 50% chance the son would be normal height and 50% chance he would be small like his father.

    I actually know a family like this. Nothing fishy going on there, the mutation is well described and now new kids with the mutation get growth hormones during their growth to reach normal size.

  • DickFiasco@lemm.ee
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    21 hours ago

    Genetics is, in fact, a science, and it allows for offspring to grow to be bigger than their parents.

    • BleatingZombie@lemmy.world
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      1 day ago

      This is hilarious, but I had a friend when I was really young. He was black and adopted by a white family. He got this joke (or not a joke) all the time and I could see it wear on him

      • Eyedust@lemmy.dbzer0.com
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        1 day ago

        Not to mention it actually does happen by birth very rarely. Latent genetic traits can pop up generations later.

        • NotASharkInAManSuit@lemmy.world
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          23 hours ago

          I dated someone in high school whose family was all Irish levels of white and their brother looked like he popped straight out of Puerto Rico. He otherwise looked like everyone else in the family, to the point there was no doubt he was a child of both parents. There were a few other people throughout their family with the same deal. When they introduced me to him they said, “This is Collin, he’s not adopted or anything, he just got lucky.”

          • ricecake@sh.itjust.works
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            5 hours ago

            Particularly with Irish people it’s more common. Theirs a few genetic pathways to the light skin common in more northern European areas. One of them showed up early in human migrations, and is pretty directly connected to production of the darker skin pigments. Adaptation done, no need for further tweaking to get vitamin D synthesis advantage.
            These people tend to have irregular patches of darker melanin regions, hair containing only the lighter variety of melanin, and skin that burns easily because the mutation provides less gradient of melanin production, and more of a “yes or no”.
            As a result, the path for that gene to be deactivated is also shorter and it’s more likely for people to have kids who don’t get it nor have many of the genes for the other ways for skin to be lighter.

            There aren’t a huge number of genes that act like switches like that, so it’s very startling for people.

    • Albbi
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      1 day ago

      You can only do so many paternity tests before you start seeing the world differently.

  • Saleh@feddit.org
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    1 day ago

    Whatever the political motives/lack of logic behind it, these faces look like they are related by blood.

    • Tar_Alcaran@sh.itjust.works
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      1 day ago

      Same nose, same eye-shape, similar chin, and rapidly rushing towards similar hairlines. If these two aren’t related, that’s a huge coincidence.

      Also, childhood malnutrition is a bitch and will absolutely cause something like this.

      • neidu3@sh.itjust.works
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        1 day ago

        Yup. There are a million causes for stunted growth that aren’t inherited. And these two look the same if you overlook the height and age.

        • vaultdweller013@sh.itjust.works
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          1 day ago

          Also sometimes genes pass down and skip a generation or two. I have the same general build and height of my great grandfather (though I’m more robust) but his own sons look closer to my great grandmother.

    • rustydrd@sh.itjust.works
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      23 hours ago

      Geneticist here. There are a number of factors that go into determining a person’s facial features. Genetics, of course, play a huge role. But other things such as …

  • Evil_Shrubbery@lemm.ee
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    23 hours ago

    The dommy mommy of the short king gratified the wall in the background (and yes, I do mean that she is just that tall, and named Laura).