This remark by DaytonRocker about a post-surgical transsexual has got me thinking:



I'm not so sure. Even on the genetic level, some persons with XX chromosones will be physically male (due to various factors in the womb during development) and some person with XY chromosones will be physically female. There are persons who are hermaphroditic to one degree or another.

Intersex Society of North America

Given the fact that one's physical sex is not as certain as we might think, does it not seem plausible that one's
psychological gender would be even more uncertain?

To be debated: Is gender determined at birth by one's biology?

Of course. Women have an extra Y chromosome. It's clearly genetic.

There are examples of men having an extra Y chromosome, but it comes with it's own share of problems and is not considered "normal". It is typically deemed a disorder.

I think you mean women have an extra X chromosome, DR. Women are XX, men XY.
There's also a conditon of having an extra X chromosome (Klinefelter's syndrome), in which the anatomical male would be sterile.

Turner's syndrome is a condition in which the (anatomically female) person has only one X. That person would have no secondary sexual traits.

There's another syndrome (forgot the name) in which the XY person has receptors which are unresponsive to testosterone and so is born as a female, but if the person is slightly sensitive to androgen he might develop male characteristics later in life (testes descend, ect).

Among numerous other anomalies...