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Origin of replication - Wikipedia
https://en.wikipedia.org/wiki/Origin_of_replication
WEBThe origin of replication (also called the replication origin) is a particular sequence in a genome at which replication is initiated. Propagation of the genetic material between generations requires timely and accurate duplication of DNA by semiconservative replication prior to cell division to ensure each daughter cell receives the full ...
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Origins of DNA replication - PMC - National Center for …
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6742236/
WEBSep 12, 2019 · DNA synthesis of daughter strands starts at discrete sites, termed replication origins, and proceeds in a bidirectional manner until all genomic DNA is replicated. Despite the fundamental nature of these events, organisms have evolved surprisingly divergent strategies that control replication onset.
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Plasmids 101: Origin of Replication - Addgene
https://blog.addgene.org/plasmid-101-origin-of-replication
WEBFeb 6, 2014 · The origin of replication is the DNA sequence which allows initiation of replication within a plasmid by recruiting transcriptional machinery proteins, enabling a plasmid to reproduce itself.
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Origin of Replication: Definition, Mechanism, and Diagram
https://researchtweet.com/origin-of-replication-definition-structure/
WEBJul 18, 2021 · Origin of Replication. The origin of replication is nothing but a sequence of DNA, at which the replication is initiated on a chromosome, plasmid or a virus. For the small DNAs, which includes bacterial plasmids and other small viruses, where a single origin is sufficient.
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9.2: DNA Replication - Biology LibreTexts
https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Concepts_in_Biology_(OpenStax)/09%3A_Molecular_Biology/9.02%3A_DNA_Replication
WEBMar 17, 2022 · How does the replication machinery know where on the DNA double helix to begin? It turns out that there are specific nucleotide sequences called origins of replication at which replication begins. Certain proteins bind to the origin of replication while an enzyme called helicase unwinds and opens up the DNA helix.
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Molecular mechanism of DNA replication - Khan Academy
https://www.khanacademy.org/science/ap-biology/gene-expression-and-regulation/replication/a/molecular-mechanism-of-dna-replication
WEBSpecialized proteins recognize the origin, bind to this site, and open up the DNA. As the DNA opens, two Y-shaped structures called replication forks are formed, together making up what's called a replication bubble. The replication forks will move in opposite directions as replication proceeds.
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14.3C: DNA Replication in Eukaryotes - Biology LibreTexts
https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Book%3A_General_Biology_(Boundless)/14%3A_DNA_Structure_and_Function/14.03%3A_DNA_Replication/14.3C%3A_DNA_Replication_in_Eukaryotes
WEBOct 31, 2023 · During initiation, proteins bind to the origin of replication while helicase unwinds the DNA helix and two replication forks are formed at the origin of replication. During elongation, a primer sequence is added with complementary RNA nucleotides, which are then replaced by DNA nucleotides.
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DNA structure and replication review (article) | Khan Academy
https://www.khanacademy.org/science/ap-biology/gene-expression-and-regulation/replication/a/hs-dna-structure-and-replication-review
WEBA replication unit is any chunk of DNA that is capable of being replicated — e.g. a plasmid with an origin of replication (ORI) is a replication unit. Alternatively, this can also mean a region of DNA that is replicated together. An ORI is …
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Origin of Replication - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/origin-of-replication
WEBDNA replication origins are characterized primarily be three types of structures: (1) sites for binding of proteins, mainly initiation and auxiliary proteins, (2) a characteristically AT-rich region that is unwound, and (3) sites and structural properties involved in regulating initiation events.
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Molecular Events of DNA Replication | Learn Science at Scitable
https://www.nature.com/scitable/topicpage/major-molecular-events-of-dna-replication-413/
WEBAs previously mentioned, the location at which a DNA strand begins to unwind into two separate single strands is known as the origin of replication.
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