Is androgenic alopecia transmitted from person to person?

No, likely genetic. "pattern baldness" is the most common cause of hair loss, and is usually hereditary. It's in the genes and is passed from parents to their children. In men, it is called male pattern baldness or androgenic alopecia. Men get a receding hair line and hair loss on top of the head. In women, it is called female pattern baldness. Women get some hair loss from the whole scalp, so the hair looks thinner.