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50.8 MB (3.2 MB compressed)
4984 x 3564 pixels
42.2 x 30.2 cm ⏐ 16.6 x 11.9 in (300dpi)
TIM VERNON / SCIENCE PHOTO LIBRARY TIM VERNON / SCIENCE PHOTO LIBRARY
DNA molecule. Computer artwork showing the structure of a double stranded DNA (deoxyribonucleic acid) molecule. DNA is composed of two strands twisted into a double helix. Each strand consists of a sugar-phosphate backbone (large spheres) attached to nucleotide bases (small spheres). There are four bases: adenine, cytosine, guanine and thymine, which are joined together by hydrogen bonds. DNA contains sections called genes that encode the body's genetic information.
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