What is the criterion for the movement of DNA | vedclass

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(B) Gel electrophoresis is a technique used to separate $DNA$ fragments based on their size. $DNA$ molecules are negatively charged due to the phospha

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Smaller fragments move further.

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(B) Gel electrophoresis is a technique used to separate $DNA$ fragments based on their size. $DNA$ molecules are negatively charged due to the phosphate groups in their backbone. When an electric field is applied,the $DNA$ fragments move towards the anode (positive electrode). The agarose gel acts as a molecular sieve. Smaller $DNA$ fragments can navigate through the pores of the gel matrix more easily and quickly than larger fragments. Therefore,smaller fragments travel a greater distance from the well compared to larger fragments.

What is the criterion for the movement of $DNA$ fragments on an agarose gel during gel electrophoresis?

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