I have the shape of my father and general mannerisms but my oldest boy could pass for my fathers brother. My youngest boy looks like my grand father on my dads side. It helps my mothers dad has some similarities to my dads side of the family as well.
I guess it helps all members both sides are Scottish by blood.
I am the stereotypical mixture of my mother and father, no questions. Same face shape, nose, mouth, I even have the short height!