DNA packaging, artwork

DNA packaging, artwork

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Credit: HENNING DALHOFF / SCIENCE PHOTO LIBRARY

Caption: 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 (lower right). The DNA double helix is tightly coiled around histone proteins (blue, lower left) which are tightly packaged together in groups of eight to form nucleosomes (blue, centre left). These are then coiled together (grey, centre) and further packaged into chromosomes (X-shaped) which are store in the cell nucleus (upper right). Each human cell contains 23 pairs of chromosomes, which contain all the body's genetic information.

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Keywords: artwork, biochemical, biochemistry, biological, biology, cell, cells, chromatid, chromatids, chromatin, chromosome, condensed, deoxyribonucleic acid, dna, double helix, euchromatin, genetic, genetics, helical, heterochromatin, histone, histones, illustration, molecular, molecule, nuclei, nucleosome, nucleus, packaged, packaging, protein, proteomics, strand, strands, structure, white background

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