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How does DNA store information?

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Quick answer

DNA stores information using a four-letter chemical code — the bases A, T, C, and G. Their order along the DNA strand spells out instructions, much like letters form words. Cells read these sequences to build proteins that run the body.

Step by step

  1. DNA uses four chemical 'letters': A, T, C, and G.
  2. Their sequence encodes biological instructions.
  3. Groups of three letters specify protein building blocks.
  4. Cells read the code to build proteins.

People also ask

How does DNA store information?
Through the order of four chemical bases (A, T, C, G), which spells out instructions for building proteins.
What are the four bases of DNA?
Adenine (A), thymine (T), cytosine (C), and guanine (G).
How is DNA like a language?
Its bases act like letters whose sequence forms 'words' (genes) that instruct the cell.