1. Single Trait The following parents were mated together. Show the Phenotype, Genotype, and expected ratio for both F1 and F2 below or to the side of the Punnett square. Complete the Punnett square for the F2. a. Parents - Male DD and Female dd. Where D is wild-type and d is a recessive mutant allele that makes the offspring dumb. b. Parents - Male aa and Female AA. Where A is wild-type and a is a recessive mutant allele that makes the offspring anxious..