DNA Holliday junction, molecular model

DNA Holliday junction, molecular model

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Credit: LAGUNA DESIGN/SCIENCE PHOTO LIBRARY

Caption: DNA Holliday junction. Molecular model of a Holliday junction (centre) between homologous strands of DNA (deoxyribonucleic acid). A Holliday junction forms during crossing over, a natural genetic process that occurs between homologous chromosomes and leads to the switching of genetic material between the chromosomes. This recombination increases the genetic variation in a population. Atoms are represented as spheres and are colour coded: carbon (grey), hydrogen (white), oxygen (red), phosphorous (yellow) and nitrogen (blue).

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Keywords: artwork, base, bases, biochemical, biochemistry, biological, biology, cross over, crossing over, crossover, dna, double helix, genetic, genetic diversity, genetics, helices, holliday junction, homologous chromosomes, homologous recombination, illustration, molecular, molecular model, molecule, nucleic acid, nucleotide, nucleotides, recombination, recombining, strand, strands, structure, sugar-phosphate backbone

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