<prompt> Multiple myeloma is characterized by all except:Presence of light chainsMonoclonal gammopathyPolyclonal gammopathyHypergammaglobulinemia  <response>: Answer is C Polyclomal gammapathy Mulitple Myeloma is characterized by monoclonal gammapathy and not polyclonal gammapathy. Multiple myeloma represents a malignant proliferation ofplasma cells derived from a single clone monoclonal Bone marrow cells are monoclonal 