Discussion
Then we can calculate concentration of DNA. Agarose gel electrophoresis of DNA is analytical method to examine the movement of changed molecules, size , shape and chemical composition of the molecules to be separated. The migration rate of the DNA molecule through a support medium depends largely on their size and conformations. Smaller DNA molecules will move faster as compared to the larger molecule. After electrophoresis, We can observe thick band that is DNA and the smear near the bottom of agarose gel is the RNA concentration. We can assume the size of DNA sample observed from molecular weight compare with Thermo Scientific GeneRuler 1 kb DNA ladder. The Thermo Scientific GeneRuler 1 kb DNA ladder.