The underlying disorder of _____ anemia is defective secretion of intrinsic factor,which is essential for the absorption of vitamin B₁₂. A) microcytic B) pernicious C) hypochromic D) hemolytic

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Pernicious anemia is caused by the deficiency of intrinsic factor, which is needed for the absorption of vitamin B12. This leads to a deficiency of vitamin B12, which can cause anemia. The other types of anemia (microcytic, hypochromic, and hemolytic) have different underlying causes.

The Underlying Disorder of _____ Anemia Is Defective Secretion of Intrinsic