The only difference is
that the TaKaRa LA Taq has higher fidelity than
TaKaRa Ex Taq. As both TaKaRa LA
Taq and TaKaRa Ex Taq possess the 3' to 5' exonuclease
activity (proof reading activity), the frequency of errors during
PCR amplification may be reduced when compared with conventional Taq
DNA polymerase. Please note, however, that the supplied buffers should
be used respectively with TaKaRa LA Taq or TaKaRa Ex Taq since the compositions
and performance goals of each are different from one another.