Total cholesterol in blood is reported as the number of milligrams of cholesterol per 100 milliliters of blood. The normal range is 180-220 . A gene mutation altering the function of cell-surface cholesterol receptors restricts the ability of cells to collect cholesterol from blood and draw it into cells. This defect results in elevated blood cholesterol levels. Individuals who are heterozygous for a mutant allele and a wild-type allele have levels of 300-600 , and those who are homozygous for the mutation have levels of 800-1000 .
Identify the genetic term that best describes the inheritance of this form of elevated cholesterol level.