Gender is much bigger and more complicated than assigned sex. Gender includes gender roles, which are expectations society and people have about behaviors, thoughts, and characteristics that go along with a person’s assigned sex.
For example, ideas about how men and women are expected to behave, dress, and communicate all contribute to gender. Gender is also a social and legal status as girls and boys, men, and women.
It’s easy to confuse sex and gender. Just remember that biological or assigned sex is about biology, anatomy, and chromosomes. Gender is society’s set of expectations, standards, and characteristics about how men and women are supposed to act.