Final answer:
Possessing both highly masculine and feminine traits is called androgyny, which relates to one's gender, and is different from one's biological sex. Gender identity is a personal sense of one's own gender, which may not align with the sex assigned at birth.
Step-by-step explanation:
Possessing both highly masculine and highly feminine traits is called androgyny. The terms masculine and feminine refer to a person's gender, which is distinct from biological sex. Gender identity is one's sense of being male, female, both of these, or another gender, and may differ from the sex they were assigned at birth, as is the case for transgender people. Individuals who do not identify with the gender typically associated with their sex assigned at birth may also describe themselves in terms such as non-binary, gender nonbinary, gender variant, or experience gender dysphoria. It's important to understand gender as a continuum of multiple identities rather than a binary of male or female.