this post was submitted on 14 Mar 2025
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[–] rambling_lunatic@sh.itjust.works 14 points 4 months ago (7 children)

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 33 points 4 months ago (6 children)

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 2 points 4 months ago (3 children)

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?

[–] dondelelcaro@lemmy.world 2 points 4 months ago

YY is non viable; the X chromosome has many genes which are essential. You can be XY, female, and fertile, but it's pretty rare.

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