A lack of intrinsic factor, leading to a deficiency of vitamin B12 and causing an appearance of large pale cells called macrocytes, is characteristic of_________ .
A) pernicious anemia
B) aplastic anemia
C) polycythemia
D) sickle-cell anemia

Question

Quizplus · Accepted Answer

Pernicious anemia is characterized by a lack of intrinsic factor, which is necessary for the absorption of vitamin B12. This deficiency leads to the development of large, pale cells known as macrocytes.

A Lack of Intrinsic Factor, Leading to a Deficiency of Vitamin