Which term refers to taking specific actions toward or against the person based on the person's group?

The answer is discrimination.

Explanation:

Discrimination refers to a prejudiced treatment or it also refers to the fact of making a distinction about a being according to the group or class they could belong. These distinctions can be related to aspects like age, sex, nationality, color, race and ethnicity, religion among others.

Discrimination is considered the way through which an individual or group is treated according to their actual membership concerning a specific social category. This treatment is worse compared to how other people are treated.