<prompt> Abetalipoproteinemia is due to deficiency of -Lecithin Cholesterol Acyl TransferaseATP Binding Cassette Transporter-1Mitochondrial Triglyceride Transfer ProteinApoCII  <response>: Ans. is c i.e., Mitochondrial Triglyceride Transfer Protein Abetalipoproteinemia or Bassen-Kornzweig syndrome is caused by a defect of Microsomal Triglyceride Transfer Protein MTTP. Partial Lecithin Cholesterol Acyl Transferase LCAT defect causes Fish Eye Disease. Complete LCAT deficiency presents as haemolytic anemia and renal failure ATP Binding Casette Transporter I ABC-1 defect causes Tangiers disease. It is characterised by Greyish Orange tonsils, Hepatosplenomegaly, mononeuritis Multiplex ApoC II defect causes Type I hyperlipoproteinemia or Familial Chylomicronemia Syndrome 