This is an example of a DNA molecule. The pieces with white things going into the center represent the nucleotide Adenine, the pieces with the black things going into the center represent the nucleotide Thymine, the pieces with green things going into the center represent the nucleotide Cytosine, and the pieces with silver things going into the center represent the nucleotide Guanine. Adenine bonds with thymine, and cytosine bonds with guanine.