I agree with you that history repeat itself. There are some resemblance that you don't need a DNA. The physical traits and the behavioural traits will tell you that this is your own.
Like my first brother is my father exatly. From the way he talks and the way he bends his neck while standing is the copy of my father.

You got me laughing when you say your standing posture is like your father. It is called one legge😆. My dear there are traits you can't control. Once you are unconscious, you find yourself doing it.

Good luck to you