25.1 MB (713.8 KB compressed)
2489 x 3520 pixels
21.1 x 29.7 cm ⏐ 8.3 x 11.7 in (300dpi)
ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY
DNA molecule. Computer artwork of a molecule of DNA (deoxyribonucleic acid). DNA is composed of two strands (ribbon-like) twisted into a double helix. Each strand consists of a sugar-phosphate backbone attached to nucleotide bases (spheres). There are four different bases: adenine, cytosine, guanine and thymine. The bases are joined together by hydrogen bonds (rods between spheres). DNA contains sections called genes that encode the body's genetic information.
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