[Campbell Biology P.985] According to the text, which of the following conditions is charact... | Practice Question

According to the text, which of the following conditions is characterized by a lower-than-normal erythrocyte or hemoglobin level, and which one is a life-threatening disease due to a blocked step in the clotting process?

  • A: Anemia; Hemophilia
  • B: Hemophilia; Anemia
  • C: Polycythemia; Thrombosis
  • D: Leukemia; Erythrocytosis

Explanation

The text defines anemia as 'a condition of lower-than-normal erythrocyte or hemoglobin level that decreases the oxygen-carrying capacity of the blood.' It also states that 'Any mutation that blocks a step in the clotting process can cause hemophilia, a life-threatening disease characterized by excessive bleeding and bruising'. Therefore, option A correctly identifies both conditions.