Answer: The quote means that a son can inherit the physical traits of his father, but the father has no genetic control over their son's personality traits.
Explanation: In "My Name Is Aram" by William Saroyan, the narrator makes this statement because Mourad resembled his father Zorab, but possessed the same personality traits as his uncle, Khosrove.
False, bias usually means when someone has an unfair opinion on something or a favor, like if you're bias against other races. I'm sorry if that didn't really make sense ;-;