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: Biochemistry
Northern Blot is used to detect 
Select and explain. 
A. Proteins, B. RNA, C. DNA, D. Enzymes
B: RNA
Answer: B: RNA 
Explanation: Southern Blot - DNA
Northern Blot - RNA
Western Blot - Proteins.