Which statements best describe the relationships between biological sex, gender identity, and gender expression? Check all that apply. Biological sex, gender identity, and gender expression are always in alignment. A person can be biologically a male and have a female gender identity. It is not uncommon for someone with a male gender identity to have a male gender expression. Biological sex and gender identity do not always align. Biological sex is not related to culture, but gender identity and gender expression are. If a person has a female gender identity, she will be biologically female.