Genetic variation is stored in a populationâs gene poolâthe combined. alleles of all of the individuals in a population. Different combinations of. alleles in a gene pool can be formed when organisms mate and have offspring. Each allele exists at a certain rate, or frequency.
Also found in: Wikipedia. cosÂ·tal surÂ·face. the surface of certain structures that face the ribs; they are the costal surfaces of the lungs (facies costalis pulmonis [TA]) and the scapula (facies costalis scapulae [TA]).
HDL Function. HDL is a complex lipoprotein with a number of functions. One of its most important function is known as reverse cholesterol transport. As cells die and are replaced, they release cholesterol into your blood. HDL binds the excess cholesterol and transfers it to other lipoproteins, such as LDL.DL also gets rid of cholesterol in the walls of your arteries and takes it to the liver to be removed from your body through the intestines. HDL is referred to as good cholesterol because of its protective effect against atherosclerosis -- the buildup of fatty plaques in your arteries.