who is responsible?the environment or the genes?

scientists have argued that both, the genes and environment have an influence of the physical and psychological characteristics of a person. john locke said that each individual was born as a blank slate(tabula rasa) and some believe that it is our genes that it is all written in our genes. and some believe that both the factors play a role. in psychology there have been many researches done on the causes of schizophrenia. some say it is due the family heredity, some say it is due to problems in the neurotransmitters and some say it develops due a stressful life. it has been very hard to establish a relation between the disorder and its cause.
i think that our genes form a basis to what we can learn from the environment. it predisposes us with the abilities to learn and observe things from the environment. the environment helps us enhance these abilities. it gives us a platform to show what our genes have predisposed in us. for example, if someone has the genes of her mother who was extremely pretty, then she can become a model and learn from others. so here she is using her heredity to gain somethings from the environment. another example can be that is someone has the gene for being very aggressive, he or she will show a lot of aggressive behavior and will learn to be violent from his surroundings.
this topic is still very debatable. scientists are still trying to figure out what exactly is responsible for our individuality.