In pea plants, yellow peas (coded for by a dominant allele Y) are dominant to green peas (requiring two recessive alleles y). Round peas (coded for by a dominant allele R) are dominant to wrinkly peas (requiring two recessive r alleles).

Question

What is the phenotype of a pea with the the genotype YYRr?

(1 point)
Responses

Green, Wrinkled
Green, Wrinkled

Yellow, Wrinkled
Yellow, Wrinkled

Green, Round
Green, Round

Yellow, Round

Answer 1

The genotype YYRr consists of:

• YY, which indicates that the plant has two dominant alleles for yellow peas, so the phenotype for the color will be yellow.
• Rr, which indicates that the plant has one dominant allele for round peas and one recessive allele for wrinkly peas, so the phenotype for the shape will be round.

Therefore, the phenotype of the pea with the genotype YYRr is Yellow, Round.