Punnett Practice

If round is dominant to wrinkly, what is the genotype of a homozygous round?

• RR

• Rr

• rr

If round is dominant to wrinkly, what is the genotype of a homozygous wrinkly?

• RR

• Rr

• rr

If round is dominant to wrinkly, what is the genotype of a heterozygous round?

• RR

• Rr

• rr

Round is dominant to wrinkly.

Cross a heterozygous round with a heterozygous round:

• 3/4 Round, 1/4 Wrinkly

• 1/2 Round, 1/2 Wrinkly

• 3/4 Wrinkly, 1/4 Round

• All round

Round is dominant to wrinkly.

Cross a heterozygous round with a homozygous round:

• 3/4 Round, 1/4 Wrinkly

• 1/2 Round, 1/2 Wrinkly

• 3/4 Wrinkly, 1/4 Round

• All round

Round is dominant to wrinkly.

Cross a heterozygous round with a homozygous wrinkly:

• 3/4 Round, 1/4 Wrinkly

• 1/2 Round, 1/2 Wrinkly

• 3/4 Wrinkly, 1/4 Round

• All round

Round is dominant to wrinkly.

Cross a homozygous round with a homozygous wrinkly:

• 3/4 Round, 1/4 Wrinkly

• 1/2 Round, 1/2 Wrinkly

• 3/4 Wrinkly, 1/4 Round

• All round

Round is dominant to wrinkly.

Cross a homozygous round with a homozygous round:

• 3/4 Round, 1/4 Wrinkly

• 1/2 Round, 1/2 Wrinkly

• 3/4 Wrinkly, 1/4 Round

• All round

Round is dominant to wrinkly.

Cross a homozygous wrinkly with a homozygous wrinkly:

• 3/4 Round, 1/4 Wrinkly

• 1/2 Round, 1/2 Wrinkly

• 3/4 Wrinkly, 1/4 Round

• All wrinkly

Tall is dominant to short. What is the genotype of a homozygous tall?

• TT

• Tt

• tt

• ss