
My method of showing a similarity or difference between the organisms
was separation of proteins by gel electrophoresis. Electrophoresis is the
movement of charged particles in solution under the influence of an electric
field. The electrophoresis setup includes: a power supply, and the electrophoretic
chamber, which the electricity travels through, and also holds the gel.
The agarose gel, containing samples in wells to be separated, is submerged
in buffer within the electrophoretic chamber. Current from the power supply
causes the proteins to migrate. Larger particles migrate slower than smaller
particles, thus separating them according to size.