This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Basics of genetics, Subject name: Biochemistry
[{'content': 'All of the following are ways of regulation of gene expression in eukaryotes, except : \nSelect and explain. \nA. Attenuation by operon, B. Gene amplification, C. Gene rearrangement, D. Regulation of mRNA stability', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Regulation of gene expression in eukaryotes. Unlike prokaryotes, transcription and translation are temporally and spatially separated in eukaryotes. This allows more points of regulation : Gene amplification Gene rearrangement Differential RNA processing Transpo of mRNA from nucleus to cytoplasm Regulation of mRNA stability Regulation at translation level Regulation by miRNA Attenuation by operon is seen in prokaryotes, not in eukaryotes', 'role': 'assistant'}]