What Is The Difference Between Incomplete Dominance And Codominance

Codominance signifies that no allele can block or mask the expression of the other allele.

In genetics gregor mendel discovered the principal of dominance. In codominance the offspring receive a combination of both parent genes whereas in incomplete dominance neither one of the parent genes expresses. What is the difference between incomplete dominance and codominance. A flower showing codominance will have patches of red and white instead of a uniformly pink flower.

Incomplete dominance is the condition when neither of the alleles is dominant rather combine and display a new trait by mixing of the two alleles. Incomplete dominance signifies the condition in which a dominant allele does not completely mask the effects of a recessive allele. Codominance is when the two parent phenotypes are expressed together in the offspring. The main difference between codominance and incomplete dominance is that in codominance a cross between individuals with two different phenotypes produces an offspring with a third phenotype showing both parental phenotypes together whereas in incomplete dominance a cross between individuals with two different phenotypes produces an offspring with a third phenotype which is a blend of the two parental phenotypes.

In codominance both the alleles present on a gene are expressed in the phenotype. The key difference between codominance and incomplete dominance is based on the expression of the traits in the offspring. An example is a white flower and a red flower producing pink flowers. In incomplete dominance neither of both the allele is dominant and give a new trait.

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