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': 'Virus lacking hemagglutinin and neuraminidase but having membrane fusion protein is ? \nSelect and explain. \nA. RSV, B. CMV, C. HSV, D. EBV', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., RSV RSV does not posses hemagglutinin or neuraminidase. . The viral envelope has two glycoproteins? i) G protein --> By which virus attaches to cell surface ii) F- protein ( Fusion protein) -->which bring about fusion between viral and host cell membranes. It is also responsible for cell to cell fusion, which leads to characteristic syncytial formation.", 'role': 'assistant'}]