Answer: The answer is minority group.
A group of people who, because of their physical characteristics or cultural practices, are singled out and treated unequally is called minority group.
Explanation:
Minority group refers to group of people with common or similar features or characteristics which differentiate them from the majority of the population. Minority group members may be of the same race, ethnic group, culture and so on. Minority groups are socially separated from the dominant forces of a society. They do not fully participate in the society.