Answer:
Sickle cell anemia is caused by a mutation in the gene that tells your body to make the iron-rich compound that makes blood red and enables red blood cells to carry oxygen from your lungs throughout your body (hemoglobin)
Explanation:
In COMPLETE dominance, the dominant trait shows up when the dominant allele is present.
In INCOMPLETE dominance, the dominant trait does not show up. What shows up is a middle ground between the dominant and recessive traits.
In CODOMINACE, both the dominant and recessive traits are present.
