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.

Question

Savanna Maxwell

6 May, 16:21

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Answers (1)

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Ruth Richards · Answer 1

The genes have a codominant pattern of inheritance because the heterozygous forms show both traits equally.