On your first day of working in a genetics office, a man with red ears walks in. You
spoke with the man and wrote down the following family history. The man's mother
and one of his sisters also had red ears, but his father, his brother, and two other
sisters had normal ears. The man and his normal-eared wife had seven children,
including four boys and three girls. Two girls and two boys had red ears. Draw the
family pedigree for the red-eared trait.