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: Microbiology
[{'content': 'Interferon interferes with replication of virus at the time of: \nSelect and explain. \nA. Protein synthesis, B. DNA/RNA replication, C. When virus enters the cell, D. Uncoating of the virus protein capsule', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Interferons are proteins that can induce a nonspecific resistance to viral infection by several mechanisms, including the inhibition of protein synthesis,\xa0inactivation of viral RNA, and enhancement of phagocytic and cytotoxic mechanisms.', 'role': 'assistant'}]