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.
What you add will depend entirely on the type of fabric that youâre using. 1  1 cup salt â add this to a dye bath if youâre dyeing cotton, rayon, ramie, or linen.  1 cup white vinegar â add this to a dye bath if youâre dyeing nylon, silk, or wool.