<prompt> Bence Jones proteins are best described as:u chainsg chainsKappa and Lambda chainsFibrin split products  <response>: Ans. is c i.e., Kappa and Lambda chains Ref: Ananthanarayan, 9the, p. 99 and 8the, p. 100 A Bence Jones protein is a monoclonal globulin protein or immunoglobulin light chain found in the urine, with a molecular weight of 22-24 kDa. Detection of Bence Jones protein may be suggestive of multiple myeloma or Waldenstroms macroglobulinemia. Bence Jones proteins are light chains of immunoglobulins so may occur as Lambda or Kappa forms, but in any other patient the chain is either Kappa or Lambda, never both. 