DNA Markers and DNA Ladders Bionexus offers a variety of Ready-to-Use, Room stable DNA Markers and DNA Ladders. Bionexus double-stranded DNA molecular weight markers are used for conventional agarose gel electrophoresis. DNA Sizes ranging from 50 bp to 10 kb for use in agarose gel electrophoresis. Bionexus DNA Markers & Ladders includes the DNA Mass Marker (Quantitative Plasmid DNA Ladder), Hi-Lo DNA Ladders and Lo DNA Marker. The Mass DNA Ladder is ideal for size determination and mass quantification in the range of 100bp-4000bp. The Hi-Lo DNA Ladder ranges from 50bp to 10kbp and Lo DNA Marker is 50bp to 2kb. Bionexus Hi-Lo DNA Ladder and Lo DNA Marker is plasmid DNA cut with EcoRI. Bionexus DNA Markers & Ladders are pre-mixed (including the loading dye), ready-to-load molecular weight markers containing dye which serve as visual aids to monitor the progress of migration during agarose gel electrophoresis. We can also provide the DNA Markers without the loading dye. Room Temprature Satble for over 1 year.