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insink2300 OP t1_jacjsft wrote

Reply to comment by lazercheesecake in Why does temperature determine the sex of certain egg laying animals like crocodiles? by insink2300

Totally forgot about human fetuses starting as female. I’ve always questioned though, just because they’re not male yet, what exactly makes them female?

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-Metacelsus- t1_jad9fo4 wrote

>Totally forgot about human fetuses starting as female.

This isn't actually correct, it's more like they start off as undifferentiated, and trigger male or female development depending on whether the SRY gene is present.

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