It’s rare but possible. Basically, the piece of the Y chromosome that hosts the SRY gene can wind up swapped onto a different chromosome and still work its magic. You really only need that one single gene to trigger the whole cascade of development that makes a person male.
I think another interpretation of Trump’s order is that nobody is female, since no embryos are capable of producing the “large reproductive cell” at conception. At conception they’re just a single cell, they aren’t producing any reproductive cells yet. That’s not until quite a while later in development.
It’s rare but possible. Basically, the piece of the Y chromosome that hosts the SRY gene can wind up swapped onto a different chromosome and still work its magic. You really only need that one single gene to trigger the whole cascade of development that makes a person male.
I think another interpretation of Trump’s order is that nobody is female, since no embryos are capable of producing the “large reproductive cell” at conception. At conception they’re just a single cell, they aren’t producing any reproductive cells yet. That’s not until quite a while later in development.