57.2 MB (1.7 MB compressed)
5000 x 4000 pixels
42.4 x 33.8 cm ⏐ 16.7 x 13.3 in (300dpi)
ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
DNA molecule, computer artwork. DNA (deoxyribonucleic acid) forms a shape called a double helix, which is like a twisted ladder. The uprights of the ladder are sugar-phosphate backbones, and the rungs are paired nucleotide bases. The bases come in 4 varieties, adenine, guanine, thymine and cytosine. The order of the base pairs is a code which carries the body's genetic information in sections called genes.
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