Taq DNA Polymerase is a thermostable DNA polymerase that possesses a 5' to 3' polymerase activity and a 5' flap endonuclease activity. It is supplied with 10X Standard Taq (Mg-free) Reaction Buffer and MgCl2. 10X Standard Taq (Mg-free) Reaction Buffer is detergent-free and designed to be compatible with existing assay systems.