👉 In the context of genetics, a "step-grandchild" is a child born to an adult and one of their children. This refers to a person who has been the biological parent of a specific individual or group of individuals in the past. In this scenario, a step-grandchild can be considered a descendant from the same family line as the original birth parent, but not necessarily related through bloodline descent. For example, consider a family with two parents: their mother and father, both of whom