Which technique is used to visualize DNA following a PCR reaction?
Posted May 2, 2023
In the gel electrophoresis technique, an electric current pulls the DNA fragments in a sample through a gel matrix. A DNA-binding dye and a DNA ladder are also added to the sample.
The dye allows researchers to visualize the stained DNA fragments as they migrate through the gel and the DNA ladder acts as a reference point, allowing researchers to determine the approximate size of the fragments in the sample.