There are difference between Sex and Gender Between Gender and sexual orientation. Even thought they might sound alike they do not mean the same even though they are relate. Sex refers to the anatomy and physiology a person is born while gender is cultural constructed base on the roles Sex’s should gave in society. Now you are more catalogues base on gender rather than sex. Now we have case where a person does not fit with the gender rules and so they identify as transgender. Which can actually be the case of Pansexual where a person does not like the opposite sex neither the same sex but rather likes a person personalities regardless of sex identity.