Punnett Squares for Two Trait (Dihybrid) Crosses

Use the following information to answer the following questions

1. Set up and fill in a punnett square representing the cross of a heterozygous orange tooth, heterozygous long tail with a heterozygous orange tooth, heterozygous long tail.

Genotype

Phenotype

2. Set up and fill in a punnett square representing the cross of a homozygous orange tooth, homozygous long tail with a heterozygous orange tooth, stubby tail.

Genotype

Phenotype

3. Set up and fill in a punnett square representing the cross of a green tooth, heterozygous tan coat with a green tooth, heterozygous tan coat.

Genotype

Phenotype

4. Set up and fill in a punnett square representing the cross of a heterozygous long tail, heterozygous tan coat with a heterozygous long tail, heterozygous tan coat.

Genotype

Phenotype

5. What do you notice between the answers to numbers 1 and 4. What is similar about the two types of animals being crossed?