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[–]zyxzevn 38 insightful - 10 fun38 insightful - 9 fun39 insightful - 10 fun -  (3 children)

XX = Woman, XY= Man, whether you want to be one or not.
Basic biology is difficult.
But dealing with yourself even more.

[–]GConly 10 insightful - 3 fun10 insightful - 2 fun11 insightful - 3 fun -  (2 children)

Technically it's ovaries or testes that define it. I've known a woman with turner's syndrome, OX, and man with Klinefelters, XXY. You see sex chr abnormalities is about 1/500 people. It's is technically possible to have a human female with ovaries and an XY set up too, and XX with male parts.

Some species don't have chromosome differences to define sex. It's one of the reasons gonads are the definitive characteristic in biology.

The hard rule is : if it's got balls and reacts to testosterone normally it's a normal male.

Anything else is female, or will externally mimic one and behave like one, as in CAIS.

I'm only being pedantic about this because if you ever get into an argument with a TRA about this they will whip all this stuff out with a loud AHA!

[–]Realwoman 7 insightful - 1 fun7 insightful - 0 fun8 insightful - 1 fun -  (1 child)

Gonads are close but it's actually the development towards gametes that is the defining factor. A body that is developed in order to produce big gametes is female, a body that develops in order to produce small gamete is male, even if something in the development goes wrong.

[–]The_Mad_Pirate 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (0 children)

That's correct. If I recall correctly, that's the argument that Richard Dawkins uses in "The Selfish Gene" to distinguish between male and female in dimorphic evolution