This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'Function of Micro-RNA \nSelect and explain. \nA. Encodes proteins, B. Modulate the translation of target mRNAs into their corresponding proteins, C. Regulation of gene expression, D. mRNA splicing', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The mRNAs, rRNAs, and tRNAs are directly involved in protein synthesis while the other RNAs paicipate in either mRNA splicing (snRNAs) or modulation of gene expression by altering mRNA function (mi/siRNAs) and/or expression (lncRNAs).The miRNAs do not encode proteins; instead, they function primarily to modulate the translation of target mRNAs into their corresponding proteins.Reference: Robbins and Cotran Pathologic basis of disease; 9th edition; Chapter 1; The genome; Page no:4', 'role': 'assistant'}]