• Question: Does DNA really look like how it typically does?

    Asked by wood532axed45 to Andy S on 25 Feb 2026.
    • Photo: Andrew Senior

      Andrew Senior answered on 25 Feb 2026:


      It’s called a double helix, and yes. A helix is a strand that spirals along it’s axis. A double helix is just two of these running in parallel.

      You will see some imaginative representations in literature where it looks like a network of colourful bubbles and tubes. But you have to remember that it’s a molecule and therefore impossible to photograph. In truth, it’s colourless and unimaginably tiny.

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