This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enzyme uses, Subject name: Biochemistry
Which isoenzyme has maximum electrophoretic mobility: 
Select and explain. 
A. LDH-1, B. LDH-5, C. LDH-2, D. LDH-3
A: LDH-1
Answer: A: LDH-1 
Explanation: Electrophoretic mobility is a common affinity electrophoresis technique used to study protein-DNA or protein-RNA interactions Always number '1' is having maximum electrophoretic mobility. LDH-1 and CK-1 have maximum electrophoretic mobility. LDH-2 has maximum concentration in blood, that's why peak is highest.