This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hemolytic anemia, Subject name: Pediatrics
In G6PD deficiency, which cells are more prone for hemolysis: 
Select and explain. 
A. Older red cells, B. Young red cells, C. Reticulocytes, D. All are susceptible
A: Older red cells
Answer: A: Older red cells 
Explanation: - Mature red cells do not synthesize new proteins - Hence, as red cells ages G6PD enzyme levels fall quickly & becomes inadequate to protect against oxidant stress. - Thus, older red cells are much more prone to hemolysis than younger ones.