 
			 
			MCQOPTIONS
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				| 1. | Protein catalysts are called __________ and RNA catalysts are called _____________ | 
| A. | enzymes, ribozymes | 
| B. | ribozymes, enzymes | 
| C. | enzymes, ribosomes | 
| D. | ribosomes, enzymes | 
| Answer» B. ribozymes, enzymes | |