Hi Mystery,
It's good to hear from you.
I personally believe that gender is a function of biology although gender roles do tend to be definied by the society we live in.
I also believe we are a combination of both genders to a degree. Although in most people one of the genders is more dominant. So the gender we usually assoicate with is the more dominant one within us.
Do you associate with one gender more than another, i.e. you feel like a woman, or you feel like a man??
Cheers D.K.