What is a co-dominant allele?
1 Answer
Codominance occurs when multiple alleles are expressed at the same time.
Explanation:
Codominance occurs when multiple alleles are expressed at the same time.
An example of codominance is blood type. The glycoprotein antigens that make blood types A and B can both be expressed without one "overpowering" the other. In other words, there is no recessive allele here. We call this blood type AB--both the A allele and B allele are expressed.
Contrast this without incomplete dominance. Here, rather than both traits being expressed in full, the traits blend. A flower heterozygous for color with one red allele and one white allele will be pink, rather than white or red, if incomplete dominance is occurring.
Incomplete dominance:
