<prompt> Which of the following statement isare 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 routeacdabcdabcab  <response>: Paramyxoviruses are negative sense single stranded Enveloped RNA virusesSite of riboncleoprotein synthesis is cytoplasm and envelop is derived from host cell plasma membraneThey are important pathogens of infants and children and responsible for major part of acute respiratory infections and Infection is acquired by respiratory route 