Taq DNA polymerase is a thermostable DNA polymerase, which can withstand prolonged incubations at high temperatures without significant decrease in enzyme activity. Taq is purified from Thermus aquaticus and is used in a wide range of molecular biology protocols. Bioline Taq DNA polymerase can amplify fragments of up to 5Kb in length from genomic DNA. Like other polymerases, Taq catalyzes the template dependent polymerization of nucleotides into duplex DNA in the 5'_3' direction. Bioline Taq polymerase lacks 3'_5' exonuclease (proofreading) activity and possesses a low 5'_3' exonuclease activity. Taq reaction products contain 3' adenosine overhangs which are suitable for TA cloning. Taq DNA polymerase is compatible with a wide range of PCR assays.