To interpret the picture of a DNA agarose gel, the first thing is to understand qualitatively how the bands seen in the gel are related to the DNA fragments. In this figure has a circular molecule (a plasmid) of 6.8 kb which has two recognition sites for a particular enzyme (Vijgen et.al, 2013 pp. 105). The rate of migration of DNA as shown in above results relies on many factors. In this experiment, it only depends on the current ...