How Do You Build A Simple DNA Model?
DNA is the basic hereditary material found in almost all organisms. Creating a model is the best way to illustrate the complex double helix structure of DNA. When completed, it closely resembles a ladder that has been twisted into a corkscrew. Similar to the way words are formed, it is the order of the chemical bases inside the DNA that determine the hereditary features of the organism. These chemical bases are paired together to form the rungs of the DNA ladder. Cut the string into two equal pieces. Tie a knot in the end of each string. Add a pony bead to the string, followed by a cylindrical bead. Continue alternating until the string is full. The different beads represent the deoxyribose and phosphoric acid that form the side rails of the DNA ladder. Cut each pipe cleaner into 2-inch segments. Divide the cut segments into pairs. Green goes with red, and yellow with blue. Twist the ends of the paired segments together. These form the organic base pairs (guanine and adenine, cytosine
