A pedigree is a diagram that depicts the biological relationships between an organism and its ancestors. Instead of using complex and highly paid tools, use free pedigree chart makers like EdrawMax or EdrawMax Online that allow 100% customization as per the requirement. The below pedigree chart shows three different pedigree charts. In pedigree analysis, the main clues for identifying an autosomal dominant disorder are that the phenotype tends to appear in every generation of the pedigree and that affected fathers and mothers transmit the phenotype to both sons and daughters.
