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.
It all depends on what the actual fiber content of the chiffon is. If it is silk, you might be able to lighten it with sodium hydrosulfite (found in Rit brand Color Remover), but this product might damage the silk if used incautiously. If your dress is made of polyester, there is nothing you can do to lighten the color.