Which pair of relatives represents a first-degree relationship?

Name: Which pair of relatives represents a first-degree relationship?
Brand: Quizplus
Rating: 4.8 (44 reviews)

Question

Quizplus · Accepted Answer

First-degree relatives are those that have a direct, single-line blood relationship within a pedigree (vertical or horizontal) with no other relative between them. Grandfather and grandson have a parent in between them. Aunt and nephew have a sibling/parent in between them. Cousins have two sibling parents in between them.

Which Pair of Relatives Represents a First-Degree Relationship