J.W. SHULER / SCIENCE PHOTO LIBRARY J.W. SHULER / SCIENCE PHOTO LIBRARY
Pancreas cells. Fluorescent light micrograph of epithelial (lining) cells from the pancreas. DNA (deoxyribonucleic acid) in their nuclei is blue. The green and red strands are proteins that make up their cytoskeletons. The protein actin is red and microtubules are green. The cytoskeleton supports the cell and its organelles (not seen). Magnification: x3200 at 6x9cm size.
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