“The roles of men and women have changed so much that there is no longer any difference. » The relationship between gender and sex has been at the root of global gender movements and issues. in the contemporary world. The representation of masculinity and femininity is humanly constructed and sets the stage for social expectations. Social institutions are designed to meet the desired gender role, based on the foundations of traditional social norms. Norms change over time and space and are influenced by the environment and cultural and social movements. Gender theory and its relationship with sex, power, femininity and masculinity are first detailed, followed by two case studies that prove gender inequality and the construction of gender in an organized context. The concept of gender refers to assigned roles that are consistent with an individual's biological sex. They consist of fully fulfilling the ideologies and attitudes manifested by a man or woman. These are “the genetic characteristics that make a child biologically a girl that also contribute significantly to making them feminine and boys receive their masculine traits” (O'Sullivan, p4). With its emphasis on gender theory, it evolved into a social phenomenon “gender is what we consider to be normally masculine or feminine” (O'Sullivan, p4). The theory of sex is determined by the biological formation of a human being, the word sex refers to “the set of biological characteristics which result in female and male forms. » (O'Sullivan, p2). Cultural and social interactions often impact the representation of gender by allowing this concept to create gender roles. Feminis...... middle of article......2. Hakim, C (2004), “Key Issues in Women's Work”, Australia: The Glass House Press3. Arvanitakis, J, (2009), “Contemporary Society”, Australia: Oxford University Press4. McGennisken, J–(2002) “Market basics” – some key questions for women5. Cooper, C, (25/03/2009), “Women still do majority of household chores: report”, ABC Online: http://www.abc.net.au/news/stories/2009/03/25 /2525756. htm6. Wearing, B, (1996), “The pain and pleasure of difference”7. M, Alveson “(2004)Masculinities and femininities in an advertising agency”-http://www.springerlink.com/content/m6250lg044hx6076/8. Gilmartin, C, Hesse-Biber, S, Lyndenberg R (1999), “Feminist approaches to theory and methodology”, New York: Oxford University Press9. Adams, C and Laurikietis R – (1977) “The Gender Trap”: A Closer Examination of Gender Roles