In the direct line, which pair illustrates a first-degree relationship?

In the direct line, which pair illustrates a first-degree relationship?

• A. Parent and child
• B. Grandparent and grandchild
• C. Great-grandparent and great-grandchild
• D. Ancestors and descendants separated by multiple generations

Answer: (A)

In the direct line, relationships are counted by generations between people. The first degree is the closest proximity in that straight line, which is the parent and child because they are separated by just one generation. A grandparent and grandchild are two generations apart (second degree), a great-grandparent and great-grandchild are three generations apart (third degree), and ancestors and descendants separated by multiple generations are more distant than the first degree. So the pair illustrating a first-degree relationship is the parent and child.

In the direct line, relationships are counted by generations between people. The first degree is the closest proximity in that straight line, which is the parent and child because they are separated by just one generation. A grandparent and grandchild are two generations apart (second degree), a great-grandparent and great-grandchild are three generations apart (third degree), and ancestors and descendants separated by multiple generations are more distant than the first degree. So the pair illustrating a first-degree relationship is the parent and child.