Final answer:
The correct term for a diagram that shows genetic relationships within a family is a pedigree. It represents inheritance patterns across generations and helps predict genetic traits in offspring.
Step-by-step explanation:
The term that describes a diagram showing genetic relationships between members of a family is A. Pedigree. A pedigree chart is used to illustrate the inheritance of a trait or genetic disorder across several generations within a family. This type of analysis helps predict the likelihood of offspring inheriting certain genetic traits. In a pedigree chart, women are depicted as circles and men as squares. Each row represents a generation, and family members that have children are linked with horizontal lines, while their offspring are connected with vertical lines descending from the couple's line