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
Ribonuclease-P is a ? 
Select and explain. 
A. Ligase, B. Ribonuclease, C. Ribozyme, D. Ribosome
C: Ribozyme
Answer: C: Ribozyme 
Explanation: Ans. is 'c' i.e., Ribozyme There are five classes of ribozymes :Ribonuclease PHammerheadTetrahymena group I intron HDV ribozymeHairpin ribozyme