Familial hypercholesterolemia is characterized by extremely high levels of cholesterol in the blood, which results from
A) defective cell membranes that cannot incorporate cholesterol.
B) poor attachment of cholesterol to the extracellular matrix of cells.
C) inhibition of the cholesterol active transport system in red blood cells.
D) nonfunctional or missing LDL receptors on cell membranes.
Correct Answer:
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