Adn Origami
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Publicado: 6 de enero de 2013
Origami DNA model
Adapted from Yen, T., 1995, Make your own DNA. Trends in Biochemical Sciences, 20: 94. Folds for your DNA model Mountain fold Valley fold
Solid lines are “mountains” and are tobe folded away from you with the peak pointing towards you.
Dashed lines are “valleys” and are to be folded towards you with the peak pointed away from you.
Making your DNA model 1. Fold allsolid lines going lengthwise down the page into "mountain folds". 2. Fold all dashed lines going lengthwise down the page into "valley folds".
Mountain folds along solid lines.
Valley folds alongdashed lines.
1
At this point, the paper should look like this:
5. Fold the two sides of the DNA model so that the “front” side is flat.
3. Bring the two sides of the model together,similar to an “I” beam.
6. Crease each solid, horizontal line into a mountain fold (away from you).
4. Look for the words “front” and “back” at the top of your model. Hold the model with the frontside facing you.
7. Flip the model to the “back” side. Crease each solid diagonal line into a mountain fold (away from you).
This side should be facing you.
Your model should look like this. 2 8. 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 model to keep ittogether 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 folds together inthe center as you go.
When you are done folding, the model should resemble the diagram above. You should be able to hold your model in one hand. 3
9. Release the model. You should be able to seethe shape of a DOUBLE HELIX.
10. Straighten out the sides of the DNA model (the DNA “backbones” ) to make them perpendicular to the creases in the middle (as in step 3). Take care not to uncurl...
Adapted from Yen, T., 1995, Make your own DNA. Trends in Biochemical Sciences, 20: 94. Folds for your DNA model Mountain fold Valley fold
Solid lines are “mountains” and are tobe folded away from you with the peak pointing towards you.
Dashed lines are “valleys” and are to be folded towards you with the peak pointed away from you.
Making your DNA model 1. Fold allsolid lines going lengthwise down the page into "mountain folds". 2. Fold all dashed lines going lengthwise down the page into "valley folds".
Mountain folds along solid lines.
Valley folds alongdashed lines.
1
At this point, the paper should look like this:
5. Fold the two sides of the DNA model so that the “front” side is flat.
3. Bring the two sides of the model together,similar to an “I” beam.
6. Crease each solid, horizontal line into a mountain fold (away from you).
4. Look for the words “front” and “back” at the top of your model. Hold the model with the frontside facing you.
7. Flip the model to the “back” side. Crease each solid diagonal line into a mountain fold (away from you).
This side should be facing you.
Your model should look like this. 2 8. 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 model to keep ittogether 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 folds together inthe center as you go.
When you are done folding, the model should resemble the diagram above. You should be able to hold your model in one hand. 3
9. Release the model. You should be able to seethe shape of a DOUBLE HELIX.
10. Straighten out the sides of the DNA model (the DNA “backbones” ) to make them perpendicular to the creases in the middle (as in step 3). Take care not to uncurl...
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