Based on this information, what is Boba's phenotype for the fur length trait?

 - long fur
 - short fur
Boba's genotype for the fur length gene is FF. Boba's genotype of FF has only F allelles. The F allele is for short fur. So, Boba's phenotype for the fur length trait must be short fur.
To check this answer, consider whether Boba's alleles are dominant or recessive. The allele for long fur (f) is recessive to the allele for short fur (F). This means F is a dominant allele, and f is a recessive allele.
Boba's genotype of FF 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, Boba's phenotype for the fur length trait must be short fur.