• rambling_lunatic@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    14
    ·
    9 hours ago

    I’m a bit uninformed on this; it seems fascinating. Do these things happen due to something unusual during the growth of a fetus? What’s the name for this phenomenon?

    • dondelelcaro@lemmy.world
      link
      fedilink
      English
      arrow-up
      31
      ·
      8 hours ago

      There’s a bunch of them, but one more common example is Androgen Insensitivity Syndrome.

      It’s also possible to have a non-functional SRY (XY but female), or to be XX with an SRY translocation (XX but male).

      Biology is complicated: pretty much anyone who says it only happens one way or is really simple is wrong.

      • JackFrostNCola@lemmy.world
        link
        fedilink
        English
        arrow-up
        1
        ·
        6 hours ago

        Moron here: Are XY females sterile or is it possible for them to pass on the Y, along with a male partner Y gene to give the baby YY genes? Or is this combination non-viable and wont develop?

        • Baguette@lemm.ee
          link
          fedilink
          English
          arrow-up
          4
          ·
          5 hours ago

          Mothers always pass the X chromosome due to how the egg works from what I remember. The sperm determines whether you get x or y for the second part.

          There is a rare event where you can have multiple sex chromosomes, like XYY, but the X is always present (at least for humans). Considering the genes in an X chromosome are vital to life, even if we could artificially create YY, it would probably end up nonviable