Pedigrees

By: Kimanh Nguyen

A pedigree is basically a family tree that shows the history of inherited traits through that family.


 * Females are represented by circles.
 * Males are represented by squares.
 * If a person has that trait, then the shape is shade d in.
 * A horizontal line represents two people coupling / mating.
 * A vertical line represents the offspring of two parents. It intersects with the horizontal line above it.