Quick-Load® 1 kb DNA Ladder is a premixed, ready-to-load molecular weight marker containing bromophenol blue as a tracking dye.
The DNA Ladder consists of proprietary plasmids which are digested to completion with appropriate restriction enzymes to yield 10 bands suitable for use as molecular weight standards for agarose gel electrophoresis. The digested DNA includes fragments ranging from 0.5-10.0 kilobases. The 3.0 kb fragment has increased intensity to serve as reference bands.
NEB also offers a Quick-Load version of this ladder with purple dye.
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