The top image on the right represents a Wright-stained microscopic field from a peripheral blood smear. The bottom image represents a microscopic field from a blood smear stained with a supravital stain. Which of the following conditions is associated with the defective erythrocytes indicated by the arrows in these images?

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The top image on the right represents a Wright-stained microscopic field from a peripheral blood smear. The bottom image represents a microscopic field from a blood smear stained with a supravital stain. Which of the following conditions is associated with the defective erythrocytes indicated by the arrows in these images?

Please select the single best answer