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: Gynaecology & Obstetrics
Fetal Hb is different from HBA in that it is : 
Select and explain. 
A. More sensitive to alkali denaturation, B. More resistant to alkali denaturation, C. More sensitive of acid denaturation, D. All of the above
B: More resistant to alkali denaturation
Answer: B: More resistant to alkali denaturation 
Explanation: More resistant to alkali denaturation