A severe vitamin B₁₂ deficiency results what form of anemia?

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A severe vitamin B₁₂ deficiency results in pernicious anemia. Pernicious anemia occurs due to the inability of the body to absorb vitamin B₁₂ from the gastrointestinal tract, leading to a deficiency that impairs the production of red blood cells. Sickle cell anemia and thalassemia are inherited genetic disorders, and microcytic anemia is characterized by smaller than normal red blood cells, which can be caused by a variety of factors including iron deficiency.

A Severe Vitamin B₁₂ Deficiency Results What Form of Anemia