GOD

Interestingly (although in some way obvious) chromosomal differences come into play with se'x differences in brain function.

Rather than just an orientation solely determined by being bathed in se'x hormones you have hardwired differences right down to your XY or X'X architecture and how these are expressed.

I would expect over time with significant statistical study it will be possible to determine the parts of the human genome that are switched simply as part of the se'x determination of the offspring. However, I believe that certain parts of the genome switched on or off act as the primary switch which determine the subordinate switches following suit.

It will also be interesting to see the genetic war between father and mother in the offspring’s genome, simply because it will not be as clear cut as 50:50 it will not be a straight battle line, it will have wins and losses all the way down the front. But why, and what influences the outcomes?

Anyway, here is the article, most interesting paragraphs shown below..

Society for Neuroscience | News Releases

"The experiments suggest that male and female brain cells may be different because of genetic differences within the cells, not just because they are bathed in different types of gonadal hormones."

"found that se'x hormones induce differentiation of glial cells in the developing brain, resulting in differences in the glial structure between males and females. Once considered only a source of support for developing neurons, glial cells are now recognized as being active participants in establishing neural synapses, or transmissions between brain cells.