DNA packaging, artwork

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DNA packaging, artwork

DNA packaging. Computer artwork showing how DNA (deoxyribonucleic acid) is packaged within a cell nucleus. A double strand of DNA is at bottom. Each strand consists of a sugar-phosphate backbone (horizontal blue line) attached to nucleotide bases. There are four nucleotide bases. The two strands twist into a double helix (lower right). The DNA double helix is tightly coiled around histone proteins (red). Eight histone proteins are tightly packaged together to form a nucleosome (centre left), which is further packaged into chromosomes (top left). In each human cell (top right) are 23 pairs of chromosomes, which contain all the bodys genetic information

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6328141

© PETER GARDINER/SCIENCE PHOTO LIBRARY

Chromatid Chromatids Chromatin Chromosome Condensed Double Helix Euchromatin Helical Heterochromatin Histone Histones Nucleosome Nucleus Packaged Packaging Deoxyribonucleic Acid Genetics Molecular Protein

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