Thats a big assumption. Then how do you persecute anybody for any crime. I don't think DNA has to do anything with the profession a person chooses. DNA might add to make the personality aggressive/docile in a person.
Yes, Syed not marrying out of the family and all.
In action/behaviours yes. Views and perspectives I believe sololy belongs to the person involved depending on the life experiences and the environment around.
For me how much a person respects other human beings defines a good upbringing.
I believe it's an argumentative point. Pious by whose standard? Its not a measureable criteria.