Question on familial baldness/genetics.?

Question

Okay, here it goes. My mother and I are questioning if her dad was really her biological father or not. We do know that my maternal grandmother was a "player" throughout her two marriages, and had atleast one child out of wedlock (17 yrs after my mom), so there's already a little suspicion.

Between my mother having rheumatoid arthritis (and no one else does) as well as me and my daughter are silent carriers (me with anemia, she without) of alpha thalasemmia- and we're supposed to be of European (poland, germany, scotland, england) descent on ALL sides we've started to wonder. Here's the part I am most interested in. My maternal grandfather had traditional male pattern baldness with onset at 24-27 years of age. My brother (he's all mine unfortunately!) has a ton of hair with NO signs of recession (he's 40yrs old). Is it possible (likelihood) for my brother to be the biological grandson (maternal) of a man with such an early onset of baldness? Thanks in advance for "real" answers!

Answer 1

The pattern of male baldness or medically known as " androgenetic alopecia " is more possible due to factors of  environmental conditions, daily diet, mental health, and even the shampoo used. Relating it solely as to inheriting it through gene will require lots of lab test. Even with a genetic lab test, the possibilities of inheriting androgenetic alopecia can be related to the mother's side and/or father's side, of their family.

Good Luck !