Answer:
Step-by-step explanation:
Bands are used in separation of agarose gel during electrophoresis. It helps to separate DNA fragments. DNA strands are negatively charged and are moved towards the anode according to there sizes this creates the bands that is seen. The Bands are viewed ender ultraviolet rays of light.
The bands are usually clear and distinguishable when viewed but smearing could occur and this makes the band lump together.