Southern blot is used to visualize: (A) RNA, (B) DNA, (C) Protein, (D) Antibody
Answer is B. A Southern blot is a method used in molecular biology for detection of a specific DNA sequence in DNA samples. Southern blotting combines transfer of electrophoresis-separated DNA fragments to a filter membrane and subsequent fragment detection by probe hybridization. Ref-D.M.Vasudevan 7/e p546