• alvvayson@lemmy.world
      link
      fedilink
      English
      arrow-up
      27
      arrow-down
      3
      ·
      edit-2
      1 year ago

      Wrong mate. Check out Swyer syndrome.

      XY vs XX chromosome is meaningless, since XY females occur in nature.

      We all start as female and testosterone turns half of us into men.

      Edit: I also just learned that XX men exist. It’s called De La Chapelle syndrome. TIL.

    • LostWon@lemmy.ca
      link
      fedilink
      English
      arrow-up
      15
      arrow-down
      1
      ·
      1 year ago

      It’s not just X and Y chromosomes that determine sex though, from what I’ve heard (from actual biologists). I don’t know the specifics though. I wish we could have up-to-date biology facts like this taught with the basics in grade schools, but I can only imagine the uproar while hostile parents are still going to court over effing gender pronouns.

        • MyFairJulia@lemmy.world
          link
          fedilink
          English
          arrow-up
          3
          ·
          edit-2
          1 year ago

          I won’t have you teach my kids about this degenerate matter!

          You mean LGBTQIA+ people?

          No, degenerate matter! Unless you bring me a glass of, say, electron-degenerate matter, i won’t even entertain these made up states of matter! And shove your Bose-Einstein condensate where the light can’t exit the event horizon!

    • ristoril_zip
      link
      fedilink
      English
      arrow-up
      10
      arrow-down
      2
      ·
      1 year ago

      Incorrect. Without intervention by hormone signals, literally every human fetus would develop as a “female” with all the traditional female sex organs and morphology. I believe they’d even be capable of generating eggs and carrying babies, but I’m not as confident on that.

      A lot of people think that the XX or XY is determinative or definitional, but it’s always the hormones, baby.

      • SpaceNoodle@lemmy.world
        link
        fedilink
        English
        arrow-up
        5
        arrow-down
        1
        ·
        1 year ago

        No, hormones are necessary for female reproduction. Read about Turner’s Syndrome (one X chromosome).

        • uid0gid0@lemmy.world
          link
          fedilink
          English
          arrow-up
          4
          ·
          1 year ago

          Also androgen insensitivity syndrome, when cells lack testosterone receptors. The complete version results in females with no uterus.