Incomplete dominance is when the phenotype of a heterozygous organism blends between the phenotypes of its homozygous parents. Meanwhile, codominance is when both alleles are simultaneously expressed in the heterozygote. An example of incomplete dominance is when two flowers (homozygous white and red) produce a flower that is heterozygous and a mix of the two parent flowers (heterozygous pink). An example of codominance is a speckled chicken (both black and white feather alleles).

Then try StudyFetch, the AI-powered platform that can answer your questions and teach you more about it!