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
What type of probe is used in western blot technique 
Select and explain. 
A. tRNA, B. mRNA, C. Antibody, D. Mutant and normal oligonucleotides
C: Antibody
Answer: C: Antibody 
Explanation: Western blotting is done to detect proteins. Radiactive labelled antibody is used as probe.