Checking primers is essential to ensure that the primers are functioning correctly and producing the desired results. Primers are small pieces of nucleic acid that are complementary to the ends of the DNA template. They provide a starting point for DNA polymerase to begin synthesizing a new strand of DNA. If the primers are not correct, the DNA polymerase will not be able to bind to the template and start the synthesis process.
There are a few different ways to check primers. One way is to use a gel electrophoresis. This technique separates the primers by size and allows you to visualize the different primer species. Another way to check primers is to use a mass spectrometer. This technique can determine the molecular weight of the primers and can also be used to identify any contaminants.