__________ is a blood disorder caused by the lack of vitamin B-12.

Question

Quizplus · Accepted Answer

Pernicious anemia is caused by the inability to absorb vitamin B-12, which is necessary for the production of red blood cells. This condition is typically due to a lack of intrinsic factor, which is produced by cells in the stomach and is necessary for vitamin B-12 absorption. Sickle-cell disease is a genetic disorder affecting red blood cells, hemolytic anemia is a condition in which red blood cells are destroyed faster than the body can replace them, and polycythemia is a disorder in which there are too many red blood cells in the body. None of these conditions are related to a lack of vitamin B-12.

__________ Is a Blood Disorder Caused by the Lack of Vitamin