The end product DNA pellet is gel like and will not re suspend nor will it load it a agarose gel. Any suggestions on how to avoid this or what may be causing the problem?
One possibility is the coextraction and precipitation of sugars with your DNA, right, but in addition to that, also can be alcohol left, if you use it in the previous precipitation. This results in a DNA solution that even when mixed with loading buffer, has lower density than TBE or TAE running buffer, thus not loading on the gel wells. If so, put your DNA tubes open at 60ºC degrees for 10 minutes to evaporate the ethanol.