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27.3 MB (1.8 MB compressed)
3543 x 2693 pixels
30.0 x 22.9 cm ⏐ 11.8 x 9.0 in (300dpi)
NANCY KEDERSHA / SCIENCE PHOTO LIBRARY NANCY KEDERSHA / SCIENCE PHOTO LIBRARY
Recombinant kidney cell. Immunofluorescent light micrograph of a recombinant Green African monkey kidney cell expressing human DNA. Deoxyribonucleic acid (DNA) contains a cell's genetic instructions. When combined with DNA from another source it is known as recombinant DNA. This process of DNA combining is known as genetic engineering. Here, human DNA encoding for a "tagged" version of a protein has been incorporated into the kidney cells. A fluorescent antibody (green) detects where the protein is located in the modified cell. Red cells are not making the human protein. The nuclei of all the cells are blue. Magnification: x624 at 6x4.5cm size.
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