Which of the Following Is Not Characteristic of Hemoglobin D

question 56

Multiple Choice

Which of the following is not characteristic of hemoglobin D disease?

• A) Migrates electrophoretically in same position as hemoglobin S
• B) Less than 0.02% frequency in American blacks
• C) Both homozygous and heterozygous states are asymptomatic
• D) Peripheral blood smear is unremarkable, except for a few target cells
• E) Positive tube solubility test

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