What is incomplete dominance and co-dominance?
“In genetics, dominance describes a relationship between different forms (alleles) of a gene at a particular physical location (locus) on a chromosome.” “Codominance – A form of inheritance in which both alleles are equally shown. Blood typing is a great example. AB blood is the codominant relationship between the A protein and B protein both expressing themselves completely. AO (type O allele means there is no protein), A is dominant and you see type A phenotype. BO is the same except you see the B phenotype. Type O is recessive. Incomplete dominance – A form of inheritance in which the heterozygous alleles are both expressed, resulting in a combined phenotype. An example is seen in some flower colors. A red and a white allele gives pink. If it were codominance, you would see the red and white colors. Incomplete dominance is most commonly found in plants.
