Which of the following correctly describes a possible scenario during a run of gel electrophoresis with DNA samples? Because DNA molecules are positively-charged due to the phosphate groups in their...

Extracted text: Which of the following correctly describes a possible scenario during a run of gel electrophoresis with DNA samples? Because DNA molecules are positively-charged due to the phosphate groups in their backbone, DNA fragements will migrate from the anode to the cathode. Because DNA molecules are negatively-charged due to the phosphate groups in their backbone, DNA fragments will migrate from the anode to the cathode. O Shorter fragments of DNA are lighter. Hence, they move faster through the gel and travel the farthest from the wells. Larger fragments of DNA move faster through the gel and travel the farthest from the wells.