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Sex chromosome variants aren't separate sexes. You're male, and develop a male body producing male gametes, if you have a Y chromosome:

* X – Female

* XX – Female

* XXY – Male

* XY – Male

* XYY – Male

* XXXY – Male

https://colinwright.substack.com/p/sex-chromosome-variants-a...

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XY but defect on the SRY region: female

XX with SRY region on one of the X: Male

XY with androgen insensitivity: female

There's a lot more of a spectrum than you'd think.

Many of the cis female athletes currently winning in the olympics, e.g. caster semenya, have significantly higher testosterone levels than would be legal for trans female athletes.

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