You perform a testcross on a tall pea plant. half the offspring are short. what conclusion can you draw from this outcome?

Testcross is a mating in which an individual showing a dominant phenotype is crossed with an individual showing its recessive phenotype. In a test cross, the unknown individual must be of a dominant phenotype because if the phenotype is recessive the genotype will have to be homozygous recessive. half of the pair short dominant