o they will migrate towards the positive anode at a rate inverse to its size (DNA Techniques 1). After a while, the molecules are separated by size. If the molecules fall into only a few discreet sizes, then bands (little rectangles) of DNA will appear in the gel. Each of these bands contains DNA strands of a specific size. These bands can be colored with radioactive dye to make them visible to imaging techniques. For individual people, the bands of DNA created through this process will have a pattern
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