DNA packaging. Computer artwork showing how DNA (deoxyribonucleic acid) is packaged within cells. Two DNA strands, consisting of a sugar-phosphate bac

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DNA packaging. Computer artwork showing how DNA (deoxyribonucleic acid) is packaged within cells. Two DNA strands, consisting of a sugar-phosphate backbone attached to nucleotide bases, twist into a double helix (top). The DNA double helix is tightly coiled around histone proteins (blue spheres), which are tightly packaged together in groups of eight to form nucleosomes (centre). These are then coiled together (lower centre) and further packaged into chromosomes (bottom centre). Each human cell contains 23 pairs of chromosomes, which contain all the body's genetic information.

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Size: 3617px × 4854px
Photo credit: © GUNILLA ELAM/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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