girls by default?
Boys are boys thanks to the precocious action of ‘male’such as SRY. In the absence of male , the foetus becomes a girl. So are girls, girls by default? The concept dates from the 1950s and the question remains open…
AR: Thiscodes for an androgen which is involved in the development of the male sexual characters, and associated with male baldness.
MECP2: Thisis associated with Rett syndrome (mental retardation).
GABRA3: Thisis involved in nerve impulse transmission.
only for girls
NR0B1: Thisis essential in the development of female sexual characteristics.