Editing Isozyme (section)

==Isozymes and allozymes as molecular markers ==
[[Population genetics]] is essentially a study of the causes and effects of genetic variation within and between populations, and in the past, isozymes have been amongst the most widely used [[molecular marker]]s for this purpose. Although they have now been largely superseded by more informative [[DNA]]-based approaches (such as direct [[DNA sequencing]], [[single nucleotide polymorphism]]s and [[Microsatellite (genetics)|microsatellites]]), they are still among the quickest and cheapest marker systems to develop, and remain ({{As of|2005|lc=on}}) an excellent choice for projects that only need to identify low levels of genetic variation, e.g. quantifying [[mating system]]s.