45.9 MB (1,011.9 KB compressed)
4000 x 4012 pixels
33.8 x 34.0 cm ⏐ 13.3 x 13.4 in (300dpi)
FRIEDRICH SAURER / SCIENCE PHOTO LIBRARY FRIEDRICH SAURER / SCIENCE PHOTO LIBRARY
DNA molecule, computer artwork. DNA (deoxyribonucleic acid) is composed of two strands twisted into a double helix. Each strand consists of a sugar-phosphate backbone (silver) attached to nucleotide bases (yellow, blue, green and red). There are four different bases: guanine, cytosine, thymine and adenine. DNA contains sections called genes, which encode the body's genetic information.
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