DR GOPAL MURTI / SCIENCE PHOTO LIBRARY DR GOPAL MURTI / SCIENCE PHOTO LIBRARY
HeLa cell. Coloured transmission electron micrograph of a section of a cultured HeLa cancer cell. The dark blue area is the nucleus containing within it the genetic material, DNA, coloured orange. Rounded organelles are seen in the cytoplasm (pale blue); microvilli projections occur on the cell surface. HeLa cells are the first human cell line, established in 1952 to research cancer. They were obtained from the cervix of Henrietta Lacks (after whom the cells are named) who later died of cervical cancer. HeLa cancer cells thrive unusually well in the laboratory and are used in research worldwide. Magnification: x2200 at 6x4.5cm size.
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