Gel electrophoresis is a separating technique that is usually used in the laboratory to separate DNA fragments on the basis of their sizes. DNA are typically loaded into one side of the gel called the well and electric force will be applied to separate the fragments. DNA fragments with more base pairs are found near the sample well compare to the anode because larger DNA fragments are not able to move through the gel at a faster rate like the ones with few number of base pair. Because DNA are negatively charged they move toward the anode, but all DNA fragments have the same amount of charge per mass, thus, small fragments move faster away from the well.
Sunlight travels through the cloud and is diffracted by the droplets, creating the rainbow effect. It can appear as a patch or band at the cloud's edges and changes as the cloud evolves.
I think that minor shielded should not donate one of their kidneys because some genetic kidney diseases won’t have started to cause symptoms yet in young children and so it’s hard to know if their kidneys may be affected by diseases