5. Genetics Quiz: Punnett Squares
1.) A homozygous normal winged fly is crossed with a homozygous vestigial winged fly. Normal
wings are dominant to vestigial wings.
a.) Identify each parental genotype.
b.) Identify each parental phenotype.
c.) Do a cross to determine the genotype and phenotype ratios for the offspring.
2.) Two heterozygous parents are crossed.
a.) Identify each parental genotype.
b.) Identify each parental phenotype.
c.) Do a cross to determine the genotype and phenotype ratios for the offspring.

6. Genetics Quiz: Punnett Squares
1.) A heterozygous normal winged fly is crossed with a homozygous vestigial winged fly. Normal wings are
dominant to vestigial wings.
a.) Identify each parental genotype.
b.) Identify each parental phenotype.
c.) Do a cross to determine the genotype and phenotype ratios for the offspring.
2.) Two heterozygous flies are crossed.
a.) Identify each parental genotype.
b.) Identify each parental phenotype.
c.) Do a cross to determine the genotype and phenotype ratios for the offspring.

7. Genetics Quiz: Punnett Squares
1.) In humans, brown eyes are dominant over blue. A brown-eyed man marries a blue-eyed woman and they have
three children, two of whom are brown-eyed and one of whom is blue-eyed.
a.) Using what you know about the offspring, identify each parental genotype.
b.) Identify each parental phenotype.
c.) Do a cross that shows the possibilities of these children.
2.) A homozygous dominant man and a homozygous recessive woman want to know
the color of their childrens' eyes.
a.) Identify each parental genotype.
b.) Identify each parental phenotype.
c.) Do a cross to determine the genotype and phenotype ratios for the offspring.

8. Genetics Punnett Square Quiz
1.) Deafness is a recessive disorder in certain breeds of dogs. A deaf male and a hearing female are crossed, and
their litter contains puppies that are both hearing and deaf.
a.) Identify each parental genotype.
b.) Identify each parental phenotype.
c.) Do a cross to determine the genotype and phenotype ratios for the offspring.
2.) Two hearing dogs are mated. Their litter of puppies contains hearing to deaf dogs in a 3:1 ratio.
a.) Identify each parental genotype.
b.) Identify each parental phenotype.
c.) Do a cross to determine the genotype ratios for these offspring. As part of your answer, circle the genotype that
creates a deaf dog.