Medical researchers have made a new discovery about how a baby’s sex is determined: it’s not just about the X-Y chromosomes, but involves a ‘regulator’ that increases or decreases the activity of genes which decide if we become male or female.
Medical researchers have made a new discovery about how a baby’s sex is determined: it’s not just about the X-Y chromosomes, but involves a ‘regulator’ that increases or decreases the activity of genes which decide if we become male or female.