Pre-mixed, and ready to use, this Master Mix contains DNA Polymerase, dNTPs, MgCl2, and reaction buffers at optimal concentrations for the amplification of DNA via PCR. Its special formulation allows for direct loading of PCR samples into agarose gels as well as tracking the migration during electrophoresis without the need for loading dyes. Simply add template, primers, and nuclease-free water, available separately. Mater Mix reduces risk of contamination. Includes 100 individual tubes for 100 reactions. Note: Can be stored at 4°C for up to six weeks, or -20°C for longer.