DNA Models

Constructing DNA models is a great way to learn about DNA structure, function, and replication.

DNA contains the genetic information for the reproduction of life. Its structure is that of a twisted double helix that is composed of long strands of alternating sugars and phosphate groups, as well as nitrogenous bases (adenine, thymine, guanine and cytosine).

Below are some examples, computer representations, and how-tos for constructing DNA models.

DNA Models: Background Information

Nucleic Acids
Information on the structure and function of nucleic acids.

Nucleic Acid Structure and Function
Information on DNA and RNA structure and functions.

The Structure of the DNA Molecule
Overview of DNA structure from Access Excellence.

DNA Models: How Tos

How to Make a DNA Model Using Candy
A simple way to construct a DNA model using candy.

DNA Models
Simple activity for constructing DNA models from cardboard paper.

DNA Jewelry Model
Activity for constructing DNA models from jewelry.

K'NEX DNA Models
Step-by-step guide on how to make DNA models using K'NEX brand constructors.

DNA Models: Computer Representations

DNA Structure
Various images of rotating DNA models and base pairs. From the University of Arizona.

Exploring DNA Tutorial
Take an interactive tour of DNA.

Other DNA Resources

DNA Transcription
DNA transcription is a process that involves the transcribing of genetic information from DNA to RNA.

Translation
In translation, messenger RNA, transfer RNA, and ribosomes work together to produce proteins.

How to Extract DNA From a Banana
A simple way to extract DNA from a banana and other types of cells.

How to Extract DNA From Human Cheek Cells
Lab method for extracting DNA from human cheek cells.

For those interested in using DNA models for science fair projects, remember that simply constructing a model is not an experiment. Models may be used however, to enhance your project. For additional information on science fair projects, visit the Science Fair Projects Help page.

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