Before blaming heredity, think of the level of your consciousnessYou must have similarities with your parents and siblings which is quite natural. The similarities in physical characteristics are because of heredity and here genes play a role. To some extent our mental and behavioural characteristics are also dependent on genes but how much? Let's go deeper to look for an answer.
First, let me give you some examples. A child growing up in an ill-mannered family will be ill-mannered after growing up and if we enquire it will be found that her/his ancestors were also ill-mannered. If you are unable to control your anger you will start blaming your parents for that nature and may try to justify by saying you got your anger from your parents. If you say this are you consciously saying this?
Initially, we learn something from observing and following others and then master it through practice. You may be ill-mannered because of your parents, you may be ill-tempered because of your parents but only after carefully observing the natures of your parents and consciously practising them, you have absorbed such characteristics. Somebody must have pointed out to you that these characteristics are unacceptable and I am sure you were not unconscious at that time. Yet you followed it in the full state of your consciousness because you thought it correct. Now after a setback, if you start blaming others for your behaviour and unacceptable acts think of your level of consciousness. Think of it again whether something overpowered your consciousness at that time when you practised such acts regularly. In that case, it may be found you were not conscious enough.
This is an entry to the TOW contest