Pedigree is a representation of different members of a family and their relation with each other in a chart pattern. Pedigree has various advantages over a written passage as it is difficult to relate different members in a family in a written passage and pedigree chart is easy to read and infer.
It is easy to see the traits of the people using a pedigree chart. It helps us understand if the trait is recessive or dominant and homozygous or heterozygous.