What is the expected genotype and phenotype ratio when a purebred tall plant is crossed with a purebred dwarf plant?
Explanation
Crossing a homozygous tall plant (TT) with a homozygous dwarf plant (tt) results in offspring that are all heterozygous tall (Tt), since the tall allele is dominant. Therefore, all progeny exhibit the tall phenotype and carry one allele for tall and one for dwarf.