The term race refers to groups of people who have differences and similarities in biological traits deemed by society to be socially significant, meaning that people treat other people differently because of them. For instance, while differences and similarities in eye color have not been treated as socially significant, differences and similarities in skin color have.
Race and Ethnicity Defined
Although some scholars have attempted to establish dozens of racial groupings for the peoples of the world, others have suggested four or five. An example of a racial category is Asian (or Mongoloid), with its associated facial, hair color, and body type features. Yet too many exceptions to this sort of racial grouping have been found to make any racial categorizations truly viable. This fact has led many sociologists to indicate that no clear‐cut races exist—only assorted physical and genetic variations across human individuals and groups.
Certainly, obvious physical differences—some of which are inherited—exist between humans. But how these variations form the basis for social prejudice and discrimination has nothing to do with genetics but rather with a social phenomenon related to outward appearances. Racism, then, is prejudice based on socially significant physical features. A racist believes that certain people are superior, or inferior, to others in light of racial differences. Racists approve of segregation, or the social and physical separation of classes of people.
Ethnicity refers to shared cultural practices, perspectives, and distinctions that set apart one group of people from another. That is, ethnicity is a shared cultural heritage. The most common characteristics distinguishing various ethnic groups are ancestry, a sense of history, language, religion, and forms of dress. Ethnic differences are not inherited; they are learned.
Most countries today consist of different ethnic groups. Ideally, countries strive for pluralism, where people of all ethnicities and races remain distinct but have social equality. As an example, the United States is exceptionally diverse, with people representing groups from all over the globe, but lacking in true pluralism. The same can be said of the ethic diversity of the former Soviet Union with its more than 100 ethnic groups, some having more than a million members.