Multiple choice LDL receptor is defective in which of the following conditions? Twin lamb disease Abetalipoproteinemia Familial hypercholesterolemia LDL atherosclerosis Obstructive jaundice Reveal answer Fill a bubble to check yourself C Correct answer Explanation Familial hypercholesterolemia results in defective apoB-100, E LDL receptor, a genetic condition that increases blood LDL cholesterol level.