DNA Holliday junction, molecular model

DNA Holliday junction, molecular model

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Credit: ALFRED PASIEKA/SCIENCE PHOTO LIBRARY

Caption: DNA Holliday junction. Molecular model of a Holliday junction (centre) between homologous strands of DNA (deoxyribonucleic acid). The structure is named after Robin Holliday. 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 colored artistically in rainbow colors.

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Keywords: biochemical, biochemistry, biological, biology, chain, chains, chemical, chemistry, chromosomes, combining, crossing over, crossover, deoxyribonucleic acid, dna, genetic, genetics, helices, holliday junction, interacting, interaction, molecular, molecular model, molecule, nucleic acid, recombination, recombine, recombining, secondary structure, strand

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