Study questions and electrophoresis gel are attached.
Here is what I see when I look at your gel. I have redone your figure as a powerpoint file so you can follow along with my description.
First off, methylene blue-stained DNA produces distinct bands when run on an agarose gel. In Lane 1 (DNA Sample #1) I see two distinct bands (2 and 3) with a third higher band that is smeared (1). Lane 2 (DNA Sample #2) ...
This solution presents the salient features of a DNA electrophoresis gel and the importance of specific steps in the preparation of purified DNA.