This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
All the statement about lactoferrin are true, except - 
Select and explain. 
A. It is present in secondary granules of neutrophil, B. It is present in exocrine secretions of body, C. It has great affinity for iron, D. It transpos iron for erythropoiesis
D: It transpos iron for erythropoiesis
Answer: D: It transpos iron for erythropoiesis 
Explanation: Ans. is 'd' i.e., It transpos iron for erythropoiesisTranspo of iron for erythropoesis is done by transferrin and not by LactoferrinLactoferrin o It is an iron binding protein and has high affinity for irono Lactoferrin is found in ?Specific / secondary granules in neutrophils.Many exocrine secretions and exudates - milk, tears, mucus, saliva, bile etc.o It apparently exes an antimicrobial activity by withholding iron from ingested bacteria and fungi.