Paul is a college student. His genetics assignment is to do a family pedigree for dimples in the cheeks. Absence of dimples is recessive; presence of dimples reflects a dominant allele. Paul has dimples, as do his three brothers. His mother and maternal grandmother are dimple free, but his father and all other grandparents have dimples. Construct a pedigree spanning three generations for Paul's family. Show the phenotype and genotype for each person.