Based on this information, what is Chloe's phenotype for the ear type trait?

 - curled ears
 - straight ears
Chloe's genotype for the ear type gene is EE. Chloe's genotype of EE has only E allelles. The E allele is for curled ears. So, Chloe's phenotype for the ear type trait must be curled ears.
To check this answer, consider whether Chloe's alleles are dominant or recessive. The allele for straight ears (e) is recessive to the allele for curled ears (E). This means E is a dominant allele, and e is a recessive allele.
Chloe'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, Chloe's phenotype for the ear type trait must be curled ears.