ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
DNA biochip. Computer artwork of a DNA biochip, used for cheap and rapid simultaneous analyses, for example of infectious organisms in samples of blood. It consists of a glass slide holding tiny dots of DNA (centre). Each dot contains a different piece of DNA, designed to bind to a specific gene on the DNA of the test sample. The Biochip is then scanned by a laser, which highlights the dots on which a reaction has taken place.
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