The biological approach suggests there is no distinction between sex & gender, thus biological sex creates gendered behaviour. Gender is determined by two biological factors: hormones and chromosomes.Click to see full answer. Also asked, what is the biological theory of gender development?The biological approach states that the distinction between men and women are due to inherent and hormonal differences. Some critique this approach because it leaves little room for sexual expression and gender because it claims both are dependent on biological makeup.Subsequently, question is, what are the theories of gender development? These theories can be generally divided into three families: biological, socialization, and cognitive. According to biological theories, psychological and behavioral gender differences are due to the biological differences between males and females. Regarding this, how does behavioral theory explain gender differences? This theory suggests that sexual attitudes and behaviors are learned through observation of role models such as parents and media figures, as well as through positive or negative reinforcements for behaviors that match or defy established gender roles.What are the differences between male and female?Sexual dimorphism is a term for the phenotypic difference between males and females of the same species. Direct sex differences follow a bimodal distribution. Through the process of meiosis and fertilization (with rare exceptions), each individual is created with zero or one Y-chromosome.