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.
Tie-Dye Instructions. Tie Dye Instructions. We teach the modern direct application method of tie dye. In direct application tie dye, you make small, concentrated solutions of dye and squirt the dye onto the fabric. You do not make large buckets full of dye, and you do not dip the fabric into the dye. When using dyes and chemicals it is important to protect your work area, and always wear gloves and protective clothing.