Electrophoresis -

DNA profiling (DNA fingerprinting) uses electrophoresis to compare crime scene samples with suspect DNA.

The process relies on the principle that many biological molecules possess an electrical charge. When placed in an electric field, these molecules migrate toward the electrode with the opposite charge. Electrophoresis

It is used to detect abnormal proteins in blood or urine, which can indicate conditions like multiple myeloma or hemoglobin disorders (e.g., sickle cell anemia). It is used to detect abnormal proteins in

Though the concept is simple—using electricity to push molecules through a "filter"—electrophoresis is one of the most powerful techniques in modern science. It transformed biology from a descriptive field into a precise, molecular discipline, providing the visual evidence needed to map the human genome and solve complex medical mysteries. An electrical current is applied

An electrical current is applied. Since DNA and RNA are negatively charged due to their phosphate backbone, they migrate toward the positive electrode (anode).