This model represents a DNA and what it would look like. In this model, we used 4 different colored marshmallows to represent the base of the chemicals. Yellow is adenine, Green is guanine, Pink is cytosine, Orange is thymine. All of these chemical bases are found in DNA. DNA is found in your body to make protein and instructs the organism what to do. That is why DNA is located in the nucleus due to the nucleus being the control center.