This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mendalian Inheritance, Subject name: Biochemistry
[{'content': 'CG region is involved in: \nSelect and explain. \nA. Acetylation, B. Methylation, C. Phosphorylation, D. DNA Replication', 'role': 'user'}, {'content': 'Answer: B \nExplanation: CG region Methylation of cytosine By DNA Methyl Transferases (DNMTs) of CG site leads to gene inhibition. the most common mechanism of genomic imprinting.', 'role': 'assistant'}]