Is it normal to think i might have other father?
Ok so I had always been wondering why I have blond hair and hazel eyes (brown & green).
My father has black hair and brown eyes and my mother has brown hair and hazel eyes (brown & green).
My sister has brown hair with blond highlights and green eyes.
So neither me nor my sister look like our father. Is it normal? Does it depend on what genes do? Should I really worry about having another father?