Nature or nurture,which is more important?

Everyone is unique owing to biological, social and cultural factors, and both of these factors can impact gender roles. However, the impact of social and cultural factors more important than others. To be more precise, factors of social and cultural including environment, parental influence, culture and social expectations. Because of factors, parents hope boys are brave and stronger while girls are tender and nurturing. It is easy to find that men are policemen, layers, engineers, are more often in positions of authority. However, about jobs, women will become teachers, nurses and so on.