Which of the following is a disorder in which red blood cells are destroyed and hemoglobin circulates unbound or is excreted in the urine?

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Hemolytic anemia is a disorder in which red blood cells are destroyed, leading to the release of hemoglobin into the bloodstream. Hemoglobin can then circulate unbound or be excreted in the urine, leading to a condition called hemoglobinuria. Porphyria is a condition that affects the synthesis of heme, a component of hemoglobin, and can cause neurological symptoms. Thalassemia is a genetic disorder that affects the production of hemoglobin, leading to anemia. Sideroblastic anemia is a disorder in which the bone marrow produces abnormal red blood cells. Hemolytic anemia is a disorder in which red blood cells are destroyed, leading to an excess release of hemoglobin, which can circulate unbound or be excreted in the urine. Porphyria is a disorder of heme synthesis that can lead to the buildup of porphyrins in the body, while thalassemia is a genetic condition that affects the production of hemoglobin in the body. Sideroblastic anemia is a disorder that results from defects in heme synthesis within red blood cells.

Which of the Following Is a Disorder in Which Red