Based on this information, what is Amos's phenotype for the body size trait?

 - a normal-sized body
 - a dwarf body
You need to determine Amos's phenotype for the body size trait. First, consider the alleles in Amos's genotype for the body size gene. Then, decide whether these alleles are dominant or recessive.
The allele for a dwarf body (b) is recessive to the allele for a normal-sized body (B). This means B is a dominant allele, and b is a recessive allele.
Amos's genotype of Bb 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, Amos's phenotype for the body size trait must be a normal-sized body.