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Origami DNA model

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Origami DNA model. Mountain fold. Solid lines are mountains and are to be. folded away from you with the peak. pointing towards you. ...

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Origami DNA modelPage 1Origami DNA modelMountain foldSolid lines are mountains and are to befolded away from you with the peakpointing towards you.1. Fold all solid lines going lengthwisedown the page into "mountain folds".Dashed lines are valleys and are to befolded towards you with the peak pointedaway from you.Valley fold2. Fold all dashed lines going lengthwisedown the page into "valley folds".Mountain folds along solid lines.Valley folds along dashed lines.Making your DNA modelFolds for your DNA model1Adapted from Yen T. 1995 Make your own DNA. Trends in Biochemical Sciences 20: 94.Page 2At this point the paper should look like this:3. Bring the two sides of the model togethersimilar to an I beam.4. Look for the words front and back at thetop of your model. Hold the model with thefront side facing you.5. Fold the two sides of the DNA modelso that the front side is flat.6. Crease each solid horizontal line into amountain fold (away from you).7. Flip the model to the back side. Creaseeach solid diagonal line into a mountain fold(away from you).Your model should look like this.This side shouldbe facing you.2Page 38. Fold ALL of the creases together in the directions of the folds made in steps 6 and 7.Your model will fold up like an accordion. While you are folding pinch the middle of the modelto keep it together to make a cyllindrical shape.Fold ALL of the creases together like an accordion.(The dotted lines in the diagrams below may help)Continue to fold pinching these foldstogether in the center as you go.When you are done folding the model shouldresemble the diagram above. You should be able tohold your model in one hand.3Page 49. Release the model. You should be ableto see the shape of a DOUBLE HELIX.10. Straighten out the sides of the DNAmodel (the DNA backbones ) to makethem perpendicular to the creases inthe middle (as in step 3).Take care not to uncurl the spiralshape.*Fix your DNA model so that all the creases are neat. This will r ...

Source: www.dnai.org

 

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