Identify the two traits and the alleles for each trait
Determine the genotype of each parent
Write the possible gametes each parent can produce
Set up a Punnett square with 16 boxes
Place one parent’s gametes across the top and the other parent’s gametes down the side
Combine the alleles in each box to find offspring genotypes
Count the number of each genotype
Count the number of each phenotype
Write the genotype ratio
Write the phenotype ratio