Simplify the following text for a Grade 9 native English-speaking person.
Original: In some cases , a person 's gender identity may be inconsistent with their biological sex characteristics , resulting in individuals dressing and\/or behaving in a way which is perceived by others as being outside cultural gender norms ; these gender expressions may be described as gender variant or transgender .
Simplified: So a transgender woman like this might have a female gender identity , but have a male sex and a male gender presentation .