Taq DNA polymerase is still the most commonly used thermostable polymerase for PCR today. However, Taq polymerase has serious limitations like the lack of an error-correcting activity and can only be used for amplification of rather short sequences. To overcome these drawbacks, Roche Applied Science has developed a set of alternative polymerase systems for both, PCR and RT-PCR which are much superior to classic Taq polymerase. To assist you in finding the polymerase system most suitable for your application we have summarized the most important features of each system in a table which you can find on all polymerase product pages. An example with explanations of the listed features is shown below. By clicking on a product name you can directly switch to the respective product page with more detailed information. These links work on every page where you see this type of table.