We supply a wide range of Invitrogen DNA ladders and markers for accurate size and mass estimation (quantitation) of DNA fragments. DNA ladders and markers are available for sizing double-stranded, single-stranded, or supercoiled DNA.
A variety of these DNA ladders and markers are also available in the ready-to-load Invitrogen TrackIt format. There is no need to heat, mix, or dilute these markers prior to loading them on your gel. TrackIt markers contain two tracking dyes that indicate when maximum resolution of the DNA fragments has been achieved.