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Name: Michelle
Status: Student
Grade:  9-12
Location: PA
Country: United States
Date: February 2005

What is a human example of incomplete dominance and co-dominance?

A good example of codominance is human blood type. Specifically the alleles that confer A and B blood types are codominant; the allele conferring type O is recessive to the A and B alleles. A good example of incomplete dominance is sickle cell disease. Homozygous recessive individuals have sickle cell disease; heterozygous individuals exhibit a mild version of the disease; homozygous dominant individuals are normal.

Christopher Perkins

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