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A DNA helix made from two measurement tapes.

Stock Photo:
Image ID: 35112010
Copyright:
Small
500x334 6.9"x4.6" (72dpi) 136 KB
Med
1000x667 3.3"x2.2" (300dpi) 416 KB
Large
5285x3523 17.6"x11.7" (300dpi) 3.5 MB
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