DNA research

DNA research

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This image is part of the feature Cancer Gene Therapy

Credit: JAMES KING-HOLMES/ICRF/SCIENCE PHOTO LIBRARY

Caption: MODEL RELEASED. Preparing equipment for DNA sequencing. A gloved laboratory technician lowers a pipette into the gel of an electrophoresis machine. The transparent gel commonly consists of agarose. Under the influence of an electric field, fragments of radioactively-tagged DNA separate according to their size. This DNA sequencing results in a unique banding pattern of DNA fragments across the gel. The banding pattern is then recorded by exposing X-ray film to the radiation emitted by the DNA fragments. The technique of sequencing DNA into a banding pattern allows the structure of genes to be studied.

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Keywords: biochemistry, biotechnology, cancer, cancer research, dna lab, dna research, dna sequencing, electrophoresis, gene therapy, gene therapy research, gene thrpy, genetic, genetics, laboratory, melanoma, preparation, research

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