-There's an interaction between two homozygous alleles.
-Alleles aren't dominant so they act together to make an intermediate heterozygote which ends up being a mix between the two parents.
-Both the alleles are present in the offspring of the parents because of the incomplete dominance within the alleles.
-The offspring does not look like the parents because the phenotype of the offspring is -completely changed.
-The dominant gene is not completely dominant over the recessive gene, resulting in the blend of the two.