1 Kb DNA Ladder is composed of eight linear double-stranded DNA bands. This ready-to-use product is premixed with 1×DNA loading buffer. Based on experiment requirement, 5 μl marker can be directly loaded for gel electrophoresis. It provides simple operation and produces clear image. For easy reference on agarose gels, the 4000 bp band (100 ng/5 μl) is brighter than the other bands (50 ng/5 μl).