"In the case of low serum cholesterol there's a specific allele associated with Apolipoprotein E. The variant Apo E2 is associated with low serum cholesterol. And because of Mendel's law of independent assortment it will be assigned randomly in the population." Wait, what? This is only true for a population in which everyone has one parent with Apo E2 and one without it. The post seems to skip over that important caveat.