<prompt> Dilated cardiomyopathy, gene altered is?DystrophinTitinSarcomereMitochondrial genes  <response>: Ans. b TitinRef: Robbins 9thpg 565-566; 8thpg 573-574DCM is familial in at least 30 to 50 of casesAutosomal dominant inheritance is the predominant pattern;Most common- mutations in TTN, a gene that encodes titin 20 of all cases of DCM 