Question

question 31 which of the following types of anemia is caused by a vitamin b12 deficiency? a aplastic anemia b hemolytic anemia c hypochromic anemia d pernicious anemia

Explanation:

Pernicious anemia is caused by a deficiency in vitamin B12, which impairs the body's ability to make enough healthy red blood cells. Aplastic anemia is due to bone - marrow failure, hemolytic anemia is from the destruction of red blood cells, and hypochromic anemia is related to low hemoglobin content in red blood cells.

Answer:

D. pernicious anemia