This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
Northern blotting used in separation and diagnosis of: 
Select and explain. 
A. Histones, B. Proteins, C. RNA, D. DNA
C: RNA
Answer: C: RNA 
Explanation: Ans: (c) RNARef: Ananthanarayan and Paniker, 9th edition, Page 65Southern blotting - DNANorthern blotting - RNAWestern blotting - ProteinsMnemonic: North India - Roti; South India - Dosa; Western countries- Pizza (R-RNA; D-DNA; P-Proteins).