QBANK Sickle-cell anemia can be caused by a single amino-acid substitution in the Beta-chain of the hemoglobin molecule. Individuals who are homozygous for

DianaZ

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Sickle-cell anemia can be caused by a single amino-acid substitution in the Beta-chain of the hemoglobin molecule. Individuals who are homozygous for this trait will be at greater risk of anemic complications. Infection with which of the following pathogens places the individual at greater risk for an aplastic crisis, specifically?

A. Chlamydia trachomatis
B. Epstein barr virus
C. Parvovirus B19
D. Staphylococcus aureus
E. Trypanosoma cruzi