A few examples, assuming you mean "dominant" literally:
aggressive
assertive
bossy
charismatic
give me answer
Nurturing, protective, and resilient.
she will never give up on her dreams.
I have no clue...
I could give you traits of people I know -- but the assignment is for people you know. Traits are just descriptions of a person's physical appearance, personality, and character.
she is stupid she can't do math she's fat she can't run and she is mentally insane
It means someone who is willing to give up his own culture and submerge himself completely in dominant.
Traits means anything about the character. Giving your characters traits just means writing some descriptions of them -- this can be either short descriptions, showing their traits by action scenes, or even showing them by dialogue.
Determened Strong brave supportive kind fierce
You can very well give an educated guess on what the genetics of the offsring you are calculating but you need to know what the mother and fathers genetics traits are and if they are homozygous dominant, homosygous recessive, heterosygous dominant, or heterzygous recessive.
A character's actions and choices in the story would give readers the most information about that character. Show how they respond to challenges, interact with others, and make decisions to reveal their traits, motivations, and development.
It means someone who is willing to give up his own culture and submerge himself completely in dominant.