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1. Build a 12 base-pair DNA model. Twist and untwist the double helix. 2. Model DNA replication. Start with the gray sugar-phosphate backbones and nucleotides in separate piles. 3. Cut each gray backbone in half. Build a 6 base-pair DNA model. Twist into a double helix, then untwist and replicate.
DNA Digital Student Modeling Activity©
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Nucleotide Coloring Activity PDF