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DNA Structure and Function
DNA Structure and Sequencing
Biology Textbooks Boundless Biology DNA Structure and Function DNA Structure and Sequencing
Biology Textbooks Boundless Biology DNA Structure and Function
Biology Textbooks Boundless Biology
Biology Textbooks
Biology
Concept Version 13
Created by Boundless

The Structure and Sequence of DNA

Three representations of DNA's double helical structure.

Three representations of DNA's double helical structure.

A is a spacefill model of DNA, where every atom is represented as a sphere. The two anti-parallel polynucleotide strands are colored differently to illustrate how they coil around each other. B is a cartoon model of DNA, where the sugar-phosphate backbones are represented as violet strands and the nitrogenous bases are represented as color-coded rings. C is another spacefill model, with the sugar-phosphate atoms colored violet and all nitrogenous base atoms colored green. The major and minor grooves, which wrap around the entire molecule, are apparent as the spaces between the sugar-phosphate backbones.

Source

    Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:

    "Original figure by Ross Whitwam. Licensed CC BY-SA 4.0."
    Ross Whitwam CC BY-SA 3.0.

Related Terms

  • deoxyribose
  • hydrogen bond
  • nucleotide
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