<prompt> Sickle cell trait can cause following exceptAnaemiaLeg ulcersNormal osmotic fragilityNone  <response>: Ans. B. Leg ulcers Ref. H-17th637; Table 99-2; 18th Table 104-2ConditionClinical AbnormalitiesHemoglobin Level gL gdLMCV, fLHemoglobin ElectrophoresisSickle cell traitNone; rare painless hematuriaNormalNormalHb SA:4060Sickle cell anemiaVasoocclusive crises with infarction of spleen, brain, marrow, kidney, lung; aseptic necrosis of bone; gallstones; priapism; ankle ulcers70-100 7-1080-100Hb SA: 1003Hb F:2-25SBdeg thalassemiaVasoocclusive crises; aseptic necrosis of bone70-100 7-1060-80Hb SA:100AHb F:l-10SB thalassemiaRare crises and aseptic necrosis100-140 10-1470-80Hb SA:6040Hemoglobin SCRare crises and aseptic necrosis; painless hematuria100-14010-1480-100Hb SA:503Hb C:50 