The reason that lack of vitamin B12 causes megaloblastic changes is that vitamin B12:
a. Is needed for the formation of nucleotide bases
b. Is needed for the conversion of methionine to SAM
c. Initiates mitosis
d. Is needed for synthesis of intrinsic factor
Question 2
Pernicious anemia is a malabsorption of vitamin B12 from what component deficiency?
a. Gastric juice
b. Intrinsic factor
c. Histamine
d. Folate