2Taq PCR Master Mix is a RTU 2 premix solution containing Taq DNA Polymerase, dNTPs, an already optimized buffer system and dye. Taq DNA polymerase synthesizes DNA under appropriate conditions from single-stranded templates in the presence of the gene-specific primers and dNTPs. Its a recombinant product extracted from E.coli with thermu aquaticus DNA polymerase gene expressed.Taq DNA Polymerase possesses the capability of 5'3' DNA polymerase and weak 5'3' exonuclease, yet, no potential of 3'5' exonuclease which means there will appear an dA overhang at the 3 end. Using this characteristic, it can be used in TA cloning. In PCR reaction, elongation rate of Taq DNA Polymerase is about 1-2 kb/min depending on the complexity of the gene. For most templates, using 1kb/min.The reaction system is ready to use by adding primers, templates and ddH2O, simplifying the experimental steps, reducing personal error and improving the repeatability of the results. Other sizes are available.