Pedigree chart

A pedigree chart is a visual diagram that shows the inheritance of a specific trait or genetic condition within a family over several generations. It uses symbols to represent individuals—typically squares for males and circles for females—and lines to connect parents to their children. Shaded symbols indicate those who have the trait or condition, while unshaded ones do not. This chart helps identify patterns of inheritance, such as dominant or recessive traits, and can assist in assessing genetic risks for future family members. It's a useful tool for understanding the genetic history of a family.