Final answer:
In gel electrophoresis, smaller DNA fragments move faster and travel further towards the positive anode, hence they will be located closer to the bottom of the gel.
Step-by-step explanation:
The type of DNA fragments that move faster through a gel polymer during gel electrophoresis are the smaller fragments. These fragments will be located closer to the bottom of the gel because their small size allows them to navigate through the gel matrix more easily. During agarose gel electrophoresis, which is a common method of DNA separation and analysis, an electric current is applied, causing negatively charged DNA molecules to migrate towards the positive electrode. Since smaller DNA fragments meet less resistance as they move through the gel matrix, they travel further towards the positive electrode than larger fragments, which move slower and are located closer to the well or top of the gel.