The Science of Violence . My grandson tends to fly into rages on a frequent basis. His father does also. Just because someone is genetically predisposed to behave in a certain way does not make it inevitable.
Genes just increase the probability of certain behaviors.
For example, if I have a genetic predisposition to become an alcoholic, I will not become an alcoholic if I never drink alcohol. If I drink alcohol, however, I will be more likely to become an alcoholic than somebody who doesn't have this gene. Aggression can also be taught. Com Communications Inc.