In case you needed a good reference to explain it’s not as simple as XX/XY when it comes to sex determination and differentiation.

Like a *LOT* less simple! I thought I knew something about it before reading this.
WHO | Gender and Genetics

Humans are born with 46 chromosomes in 23 pairs. The X and Y chromosomes determine a person’s sex. Most women are 46XX and most men are 46XY. Research suggests, however, that in a few births per thousand some individuals will be born with a single sex chromosome (45X or 45Y) (sex monosomies) and som…

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