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1.2 choose equipment or resources to perform a first-hand investigation to construct a model of DNA
choose equipment or resources to perform a first-hand investigation to construct a model of DNA
- Refer back to the work you did in HSC module 9.3.3 – Chromosomal structure provides the key to inheritance. Use the Background information and diagrams in books or commercial models to gain a thorough understanding of the parts of DNA.
- Consider materials to use to construct the model. Plasticene or play dough could be used to represent the sugar, the phosphate and the bases and pipe cleaners or thin wire could be used for the bonds. You will need to decide on a scale for your model. Decide how many nucleotides you will include. You need enough so that you will have at least one twist of the helix to get a good 3D impression.
- When you have made the components of your DNA construct the model by assembling them so they form a 3D structure. If you use different shapes for each of the bases, include a key with your model.