Based on this information, what is this plant's phenotype for the stem height trait?

 - a tall stem
 - a short stem
You need to determine the pea plant's phenotype for the stem height trait. First, consider the alleles in the plant's genotype for the stem height gene. Then, decide whether these alleles are dominant or recessive.
The allele for a short stem (h) is recessive to the allele for a tall stem (H). This means H is a dominant allele, and h is a recessive allele.
The pea plant's genotype of Hh 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, the pea plant's phenotype for the stem height trait must be a tall stem.