LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
DNA biochip. Computer artwork of a DNA biochip, used for cheap and rapid simultaneous analyses of pieces of DNA. A DNA double helix is down right. The chip holds tiny dots of DNA. 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. This indicates which genes are present in the sample.
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