This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Molecular Genetics, Subject name: Biochemistry
Northern blot is for: 
Select and explain. 
A. DNA, B. RNA, C. Protein, D. DNA protein interaction
B: RNA
Answer: B: RNA 
Explanation: Ans. B. RNANorthern blotRNASouthern blotDNAWestern blotProteinEastern blotPost-translational modified protein