A homozygous tall plant has the genotype TT, and a heterozygous short plant in this case actually seems to mean Tt, though note that Tt still results in a tall plant because T (tall) is dominant over t (short). When TT is crossed with Tt, the possible combinations are:TT (from T of TT and T of Tt)TT (from T of TT and T of Tt)Tt (from T of TT and t of Tt)Tt (from T of TT and t of Tt)So, the genotypes of the offspring are 50% TT and 50% Tt. Both genotypes result in tall plants, so the phenotype is 100% tall. There will be no short plants, since no tt combination appears.Let me know if you need more help! If this helps, feel free to mark it Brainliest