Which of the Following Statements About the Hb^S Allele Is

question 56

Multiple Choice

Which of the following statements about the Hb^S allele is NOT true?

• A) It is found in higher gene frequencies in regions where malaria is endemic.
• B) It causes sickle-cell anemia in homozygous individuals.
• C) It spread through the tropics as communities adopted slash-and-burn agriculture.
• D) Heterozygous individuals have an increased immunity to malaria.
• E) Homozygous individuals usually develop fatal cases of dysentery.

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