Based on this information, what is Squirt's phenotype for the tail spots trait?

 - a spotted tail
 - an unspotted tail
You need to determine Squirt's phenotype for the tail spots trait. First, consider the alleles in Squirt's genotype for the tail spots gene. Then, decide whether these alleles are dominant or recessive.
The allele for a spotted tail (I) is dominant over the allele for an unspotted tail (i). This means I is a dominant allele, and i is a recessive allele.
Squirt's genotype of Ii has one dominant allele and one recessive allele. An organism with at least one dominant allele for a gene will have the dominant allele's version of the trait. So, Squirt's phenotype for the tail spots trait must be a spotted tail.