How To Make A 3d Dna Model

The string should be cut to be about 1 foot 30 cm long although you can make it longer or shorter based on your preferred size of dna model. Just attach the bases like steps of a ladder between the two strands twist them and your dna model is ready. You will need 24 red balls 24 white balls 13 blue balls 13 green balls 13 yellow balls and 13 orange balls.
how to make a 3d dna model

Cut the licorice into 1 inch pieces.

How to make a 3d dna model. Step by step instructions assign names to colored marshmallows to signify the nucleotide bases. Take 24 of the balls and paint 12 green and leave 12 white. To make a 3d model we need to make two strandssugar and phosphateand then pairs of nitrogenous basesadenine and thymine and cytosine and guanine. Paint the balls using the six different colors and six brushes.

To paint half of the balls green use a paintbrush to apply a thin layer of green water based paint. The 4 colors would represent adenine cytosine. Gather string and toothpicks to be used in creating the model. Assign names to the licorice sticks such that one color represents the pentose sugar molecule and the other the.

Remember dna always twists to the right. Let the balls dry. Lay down newspaper to protect your work surface and pour paint into plastic cups. Use 2 pieces of string that are the same length to make the double helix.

These green and white balls will make up the strands that run along the outside of your dna model or the sugar and phosphate of your double helix.