100bp Plus DNA Ladder is designed for sizing and approximate quantification of wide range double- stranded DNA fragments on agarose and polyacrylamide gels. The ladder is composed of fourteen chromatography-purified individual DNA fragments (in base pairs): 3000, 2000, 1500, 1200, 1000, 900, 800, 700, 600, 500, 400, 300, 200, 100. It contains two reference bands (1000 and 500bp) for easy orientation. The ladder is dissolved in TE buffer.