I did not state that anything would automatically show up in the “brain” I did state that it would have to show up in the wiring somehow.
It could be in the blood, it could be in the brain it could be in the heart. It must be somewhere.
Lets take a car from example if the car has a mechanical problem it automatically must be somewhere in the wiring, the mechanic may not be able to find it, however it must be there or it would not have an outward manifestation.
The same applies to human being’s the “outward” manifestation must have a root cause in the inner “wiring” of the person.
This by the way is in no way contradictory to the Torah, rather it’s fundamental part of understanding the Torah.
We believe that man is combined between the “body” and the “soul” the body presents “tests” challenges if you will our soul is what gives us the ability to over come these challenges.
Can a male have female characteristics?
Have you ever learnt the inyan of Yosef Hatzaddik and Dinah, why the Torah emphasizes that Yosef was “mesalsel bsaroh” and Dinah was a Yetzonus?
We do not deny that not everyone fit’s a cookie cutter box.
What believing Jew does state is that if G-d created someone a man that person is a man.
If G-d created that person a woman then that person is a woman.
However let’s be clear over the current “Debate”.
Anyone who denies man made global warming,
Questions whether or not man came from monkeys tens of thousands of years ago is questioning observable, provable scientific facts.
However if one say’s that a person born as a man with the physical attributes of a man, the hormonal structures of a man, and in some famous cases one who was actually married and had the ability to produce children, is a man and not a female they are backwards.