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': 'Which of the following statement is/are true of all paramyxoviruses -a) They contain a single standed RNA genome of negative polarityb) Envelope is derived from the host cells plasma membranec) They have a cytoplasmic site of replicationd) They enter the body by the respiratory route \nSelect and explain. \nA. acd, B. abcd, C. abc, D. ab', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Paramyxoviruses are negative sense single stranded Enveloped RNA viruses\nSite of riboncleoprotein synthesis is cytoplasm and envelop is derived from host cell plasma membrane\nThey are important pathogens of infants and children and responsible for major part of acute respiratory infections and\xa0Infection is acquired by respiratory route', 'role': 'assistant'}]