KATERYNA KON / SCIENCE PHOTO LIBRARY KATERYNA KON / SCIENCE PHOTO LIBRARY
Human cell with chromosomes, illustration. Chromosomes, which consist of two identical chromatids joined at a centromere (light), are composed of deoxyribonucleic acid (DNA) coiled around proteins. DNA contains sections, called genes, which encode the body's genetic information, determining each cell's structure, function and behaviour.
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