Granted, but the only difference with our own chromosomes could be that we've pegged the primary marker.. 99% of the time cannabis passes on its genetic sex expression in a way that is absolutely analogous to an XX/XY punnet square..
Furthermore, mammalian abnormailities exist that result in female expression of XY and male expression of XX (among others)..
Its well understood that in mammals, female expression is the default, until a trigger (that typically resides on the Y chromosome) is activated..
So regardless of the actual cannabis genome, if this type of determination occurs in the plant kingdom, then its highly likely that expression can be altered early on..