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RE: Trump administration would like to pretend some LGBT+ people don't exist, let's look at the facts
This was a phenomenal post! Thank you for working through a (non-exhaustive) list of various genetic combinations and some of their effects. Resteemed!
Let me make sure I'm understanding: the SRY gene is normally associated with the Y chromosome, right? But SRY is not always present even on Y chromosomes?
Finally, of course, no doctors are doing complex genetic testing at birth, so they're just doing a quick visual inspection and assigning sex at birth. Hence, much room for overly-simplified error?
Thanks! Sorry if it wasn't too clear, Y chromosomes usually have the SRY gene but sometimes they don't (and there are other genes involved too, but SRY seems to be the important one that sets things in motion)
And yes basically the doctor looks at the genitalia and that's it. I think nowadays some things are normally tested (like XXY or XXX) but I'm not an expert, I don't know which genetic or chromosomal tests are common nowadays.