What are some way to make a 3D DNA model without using a store-bought kit?
It can be made out of anything, with the exception of food. It must have at least one full twist.
- 8 years agoFavorite Answer
There's a few different ways to make a DNA model. Here are just a few ideas. I put the links to the directions under each of them.
From styrofoam balls
From jewelry & beads
Fron pipe cleaners & fishing line
- TonyaLv 44 years ago
a whole bunch of 1" diameter or less styrofoam balls. 4 colors of paint. a lot of pipecleaners of the same 4 colors as the paint. a couple tubes of superglue. split up the balls into 4 groups, however many per group you want. each group gets painted a different color. take the pipecleaners. match the colors to the painted balls. cut the pipecleaners to be about 3 or 4 inch long pieces. put a little dab of superglue on one end of the pipcleaner and jam that end a little into the corresponding colored ball. do this for all the balls. make sure you know which color is which DNA base, then pair up the bases accordingly, putting a dab of superglue on the free end of the pipecleaners and sticking them together. hold it for about 30 seconds to it takes hold and it's good. pair up and glue together as many base pairs as you like in this manner. once you've got them all paired, line then up like a ladder (just laying flat on the floor is fine for now). find a picture of DNA online. start assembling the double helix by putting a dab of the glue on the same side of the 2 colored balls of one ladder "rung" and putting another pair on top, but slightly off center. continue to glue them together in the form of the DNA double helix, making sure to show the major and minor grooves. and there you have it! if it's not sturdy enough the way it is, then you can take some toothpicks and glue then along the edges of the molecule (on the sides of the colored balls opposite the pipecleaners) and paint over them with the ball colors. get a stick long enough to put down the middle of your double helix and fasten it in place. add a bottom to it if you like so it can sit on a desk. don't forget a color guide! good luck!