A pedigree chart is used to track the a trait of interest over a few generations. The pedigree chart is represented in colors to show dominant and recessive alleles. In a pedigree chart the colors are assigned and the legend states the phenotype of phenotype of the trait being followed. The individuals with a certain trait is represented by one color while the individuals of another trait is represented by a different color. Heterozygous individuals are represented by both colors.
