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Gene duplication - Wikipedia
https://en.wikipedia.org/wiki/Gene_duplication
WEBGene duplication (or chromosomal duplication or gene amplification) is a major mechanism through which new genetic material is generated during molecular evolution. It can be defined as any duplication of a region of DNA that contains a gene.
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Duplication - National Human Genome Research Institute
https://www.genome.gov/genetics-glossary/Duplication
WEB4 days ago · Definition. Duplication, as related to genomics, refers to a type of mutation in which one or more copies of a DNA segment (which can be as small as a few bases or as large as a major chromosomal region) is produced. Duplications occur in all organisms.
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18.4D: Gene Duplications and Divergence - Biology LibreTexts
https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Book%3A_General_Biology_(Boundless)/18%3A_Evolution_and_the_Origin_of_Species/18.04%3A_Evolution_of_Genomes/18.4D%3A_Gene_Duplications_and_Divergence
WEBOct 31, 2023 · Gene duplication is the process by which a region of DNA coding for a gene is copied. Gene duplication can occur as the result of an error in recombination or through a retrotransposition event. Duplicate genes are often immune to the selective pressure under which genes normally exist.
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Mechanisms of Gene Duplication and Amplification - PMC
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4315931/
WEBDetecting Duplications. In genetic approaches to duplication mechanisms, one measures the rate of duplication formation and observes how that rate is affected by mutations that eliminate various candidate functions. This requires observing changes in duplication frequency over time.
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DNA Deletion and Duplication and the Associated Genetic
https://www.nature.com/scitable/topicpage/dna-deletion-and-duplication-and-the-associated-331/
WEBDuplications may affect phenotype by altering gene dosage. For example, the amount of protein synthesized is often proportional to the number of gene copies present, so extra genes can lead to...
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18.4C: Whole-Genome Duplication - Biology LibreTexts
https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Book%3A_General_Biology_(Boundless)/18%3A_Evolution_and_the_Origin_of_Species/18.04%3A_Evolution_of_Genomes/18.4C%3A_Whole-Genome_Duplication
WEBOct 31, 2023 · Key Points. Whole- genome duplication can provide an evolutionary advantage by providing the organism with multiple copies of a gene that is considered favorable. Whole-genome duplication can result in divergence and formation of new species over time.
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An Overview of Duplicated Gene Detection Methods: Why the Duplication
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7565063/
WEBSep 4, 2020 · Gene duplication is an important evolutionary mechanism allowing to provide new genetic material and thus opportunities to acquire new gene functions for an organism, with major implications such as speciation events.
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The evolution of gene duplications: classifying and ... - Nature
https://www.nature.com/articles/nrg2689
WEBJan 6, 2010 · Key Points. Models of gene duplication can be classified into four major categories according to the mode of selection in the early phases of the evolution of the duplicated copies. The...
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What Is the Role of Genome Duplication in the Evolution of …
https://academic.oup.com/mbe/article/23/5/887/1058364
WEBDec 20, 2005 · Genome duplication is both an ancient and ongoing process in yeast, plants, and animals. It was recently confirmed that the yeast genus, Saccharomyces, experienced an ancient whole-genome duplication ( Kellis, Birren, and Lander 2004 ), and genome duplication is ubiquitous in plants ( D. E. Soltis and P. S. Soltis 1999 ).
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The impact of whole genome duplications on the human gene
https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1009638
WEBDec 6, 2021 · Gene duplication is one of the main mechanisms driving genome evolution. The duplication of a genomic segment can be the result of a local event, involving only a small portion of the genome, or of a dramatic duplication of the whole genome, which is however only rarely retained.
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