Sickle cell anemia is a disease that causes the blood cells to be shaped like sickles instead of being circular. The table describes the phenotype of red blood cells when a particular genotype is present.
Genotype Effect
homozygous recessive sickle cells
homozygous dominant normal, circular blood cells
heterozygous some normal cells and some sickle cells in the blood
What type of inheritance is shown by the genes that control sickle cell anemia? Explain your response.
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