LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Chromosome and DNA molecules. Computer artwork of a condensed chromosome with molecules of DNA (deoxyribonucleic acid) behind it. Chromosomes, which consist of two identical chromatids joined at a centromere (centre), are composed of DNA coiled around proteins. The DNA behind the chromosome is in its uncondensed form of helical molecules. DNA contains sections, called genes, which encode the body's genetic information, determining each cell's structure, function and behaviour.
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