Question

Codominance

Accepted Answer

occurs when 2 dominant alles occur for a gene that are equally dominant and so both alleles expressed as phenotype
e.g colour of snapdragon flower either red or white (alleles coding for these colours both dominant), so flower can be red (homo dominant red), white (homo dominant white) or pink (hetero)
the alleles are represented using a capital letter for the gene (e.g C here) and the alleles represented by second letter shown as superscript (e.g here its C^R for red and C^W for white)

Dominant Alleles Red Gene Flower White Homo Represented