About the DNA Structure 3D model (Biology)

Interactive double helix with base pairs and backbone.

DNA is a double helix made of two sugar-phosphate backbones joined by base pairs: A-T and G-C.

What students learn from this biology model

• Describe the double helix structure of DNA
• Name the four bases and their pairing rules
• Explain the job of the sugar-phosphate backbone

Labelled parts explained

What is the Double helix in DNA Structure?

Two strands twisted around each other like a spiral ladder.

What is the Backbone in DNA Structure?

The sugar and phosphate chain that forms the sides of the ladder.

What is the Base pair in DNA Structure?

A joins with T and G joins with C to form the rungs of the ladder.

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