Based on this information, what is this plant's phenotype for the pea shape trait?

 - wrinkled peas
 - round peas
The pea plant's genotype for the pea shape gene is EE. The pea plant's genotype of EE has only E allelles. The E allele is for round peas. So, the pea plant's phenotype for the pea shape trait must be round peas.
To check this answer, consider whether the pea plant's alleles are dominant or recessive. The allele for round peas (E) is dominant over the allele for wrinkled peas (e). This means E is a dominant allele, and e is a recessive allele.
The pea plant's genotype of EE has two dominant alleles. An organism with at least one dominant allele for a gene will have the dominant allele's version of the trait. So, the pea plant's phenotype for the pea shape trait must be round peas.