Dr. Grace Dzido, MD is an internal medicine doctor who practices in Roanoke, VA. She is 54 years old and has been practicing for 19 years.
The Loading Dye * Loading dye is a colored buffer mixed with the DNA prior to loading onto the gel. The loading dye contains a relatively high concentration of either glycerol or sucrose. This makes the solution more dense than the surrounding running buffer so that when a sample is pipetted over top of a well it sinks down into the well.
Solution Dyeing. Solution dyeing, also known as dope or spun dyeing, is the process of adding pigments or insoluble dyes to a solution before it is extruded through the spinneret. Only manufactured fibers can be solution dyed.