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
True about Ribozyme: 
Select and explain. 
A. Peptidyl Transferase activity, B. Cuts DNA at specific site, C. Participate in DNA Synthesis, D. GTPase activity
A: Peptidyl Transferase activity
Answer: A: Peptidyl Transferase activity 
Explanation: Ans. A. Peptidyl Transferase activity(Ref: Harper 31/e p396)Ribozyme is RNA with catalytic activity.E.g.: SnRNA in Spliceosome-Takes part in splicing of exons and removal of intronsRibonuclease P--Cuts the RNAPeptidyl Transferase: Peptide Bond formation other optionsCuts the DNA at specific site--Restriction EndonucleaseDNA Synthesis--DNA Polymerase