you're assuming that baldness is A) basically genetic and B) that basically one gene controls it. the two are incorrect. Baldness can effect from countless different issues to boot genes. Hair products, rigidity, scalp/follicle injury, and absence of care can all make a contribution to balding. i do no longer know your mom's kin, although in accordance with what you mentioned, it particularly is possibly there is a few genetic component of the baldness there. additionally, most of the genes controlling hair growth are unfold for the period of the genome. weight loss plan and environment can play an excellent place in turning on and rancid the genes that would reason baldness. it particularly is genuine that some person-friendly forms of baldness are on the X chromosome, wherein case you would be doomed for baldness -- probably. there is the possibility that your mom by no skill picked up that allele, or perhaps that your mom (or perhaps you!) skilled a mutation at those alleles to get rid of the baldness trait. And, as you referred to, there could desire to be something out of your father's chromosomes that cut back or negate regardless of protein expression (or lack thereof) that could desire to be inflicting the baldness.