What is the common term for a chart that tracks traits within a family?

• A. Lineage chart
• B. Family tree
• C. Pedigree
• D. Hereditary map

Answer: (C)

A pedigree is a specialized type of chart used to track the inheritance of traits within a family across generations. It provides a visual representation of family relationships and illustrates how certain traits or genetic conditions are passed down from one generation to the next. By doing so, it helps to understand patterns of inheritance, such as autosomal dominant or recessive traits, and can be crucial in genetic counseling and identifying risks of genetic disorders.

While a family tree might show familial connections, it does not specifically track traits or genetic information, which is the primary purpose of a pedigree. A lineage chart may refer to a more general concept of ancestry without the focus on traits, and a hereditary map is not commonly used terminology in genetics. Therefore, pedigree is the most accurate term for a chart that explicitly records traits within a family.