*nods* It actually changes the physical construct of the brain. The fetus brain is flooded with more testosterone than the boy will see until puberty at about six weeks. But absolutely, the template of the brain is female.

Typically, the corpus callosum is significantly larger in females than males allowing for more fluid transfer between the hemispheres. It is that part of the brain that connects the two hemispheres. It is helpful for some to think of it this way - the adult female brain is like a large room. An adult male brain occupies the same square footage, but consists of rooms allowing for compartmentalization due to the smaller width of the corpus callosum.

When men have a larger than average corpus callosum, they tend to be geniuses. In fact, Da Vinci's brain was saved and is studied even today. He had the largest corpus callosum on record for a male. Anyway, interesting stuff to me - and I thought maybe for you too.

Unless one is doing their own blood work at home, I'm guessing it was their doctor that ordered the tests and he or she knows the results before the patient does.