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49.8 MB (1.1 MB compressed)
3401 x 5120 pixels
28.7 x 43.4 cm ⏐ 11.3 x 17.1 in (300dpi)
LAWRENCE LAWRY / SCIENCE PHOTO LIBRARY LAWRENCE LAWRY / SCIENCE PHOTO LIBRARY
Human genome, conceptual image. Human figures on a plastic molecular model of DNA (deoxyribonucleic acid). DNA is composed of two strands twisted into a double helix. Each strand consists of a sugar-phosphate backbone (on outside of helix) attached to nucleotide bases (horizontal, between strands). There are four different bases: guanine, cytosine, thymine and adenine. DNA contains sections called genes, which encode the body's genetic information. A genome is the entire DNA sequence of an organism.
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