Western blot technique

Western blot technique

G210/0936

Rights Managed

Caption

Western blot technique. Female researcher examining a Western blot film. This technique uses enzymes to fragment DNA (deoxyribonucleic acid), and the fragments are then separated in an electrophoresis gel. The separated fragments are then "blotted" onto a nitrocellulose filter and marked with radioactive probes. The probes indicate the presence of specific genetic sequences (lengths of DNA that code for proteins). A sheet of photographic film is then laid over the filter. The radioactivity darkens the film, which reveals the position of genes in the DNA (seen here).

Release details

Model release available. Property release not required.

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