100bp Plus DNA Ladder is a premixed, ready-to-load molecular weight marker containing eight linear double-stranded DNA fragments. The DNA Ladder is suitable for use as molecular weight standards for agarose gel electrophoresis. The DNA Ladder contains 100bp -1.5 kb DNA fragments. The 500bp band (100 ng/5 μl) has doubled intensity than other bands to serve as reference 100bp-1500bp.