How Much to Charge for Graduation Photos. Graduation is an important turning point in many lives. What better way to remember that turning point than with graduation photos? Traditionally, photos were taken by the graduate's loved ones in the audience, but that is changing. Professional photographers are beginning to find a new market in graduation events.
Gel electrophoresis is a technique that allows the DNA fragments to separate according to? Length. DNA has a natural negative charge - and so will move towards the positive electrode.
This is how agarose electrophoresis separates different DNA molecules according to their size. The gel is stained with ethidium bromide so you can visualize how these DNA molecules resolved into bands along the gel. Southern blotting may also be used as a visualization technique for agarose gels.