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  2. Slipped strand mispairing - Wikipedia

    en.wikipedia.org/wiki/Slipped_strand_mispairing

    Slipped strand mispairing (SSM, also known as replication slippage) is a mutation process which occurs during DNA replication. It involves denaturation and displacement of the DNA strands, resulting in mispairing of the complementary bases. Slipped strand mispairing is one explanation for the origin and evolution of repetitive DNA sequences. [1]

  3. Control of chromosome duplication - Wikipedia

    en.wikipedia.org/wiki/Control_of_chromosome...

    Replication is initiated at multiple origins of replication on multiple chromosomes simultaneously so that the duration of S phase is not limited by the total amount of DNA. [1] This flexibility in genome size comes at a cost: there has to be a high-fidelity control system that coordinates multiple replication origins so that they are activated ...

  4. Trinucleotide repeat expansion - Wikipedia

    en.wikipedia.org/wiki/Trinucleotide_repeat_expansion

    Triplet expansion is caused by slippage during DNA replication, also known as "copy choice" DNA replication. [2] Due to the repetitive nature of the DNA sequence in these regions, 'loop out' structures may form during DNA replication while maintaining complementary base pairing between the parent strand and daughter strand being synthesized.

  5. Replicon (genetics) - Wikipedia

    en.wikipedia.org/wiki/Replicon_(genetics)

    The initiator is the protein that recognizes the replicator and activates replication initiation. [1] Sometimes in bacteriology, the term "replicon" is only used to refer to chromosomes containing a single origin of replication and therefore excludes the genomes of archaea and eukaryotes which can have several origins. [2]

  6. Mutational signatures - Wikipedia

    en.wikipedia.org/wiki/Mutational_signatures

    The 16 possible mutation types of the substitution class C>A are shown as an example. Once the mutation catalog (e.g. counts for each of the 96 mutation types) of a tumor is obtained, there are two approaches to decipher the contributions of different mutational signatures to tumor genomic landscape:

  7. Inverted repeat - Wikipedia

    en.wikipedia.org/wiki/Inverted_repeat

    An inverted repeat (or IR) is a single stranded sequence of nucleotides followed downstream by its reverse complement. [1] The intervening sequence of nucleotides between the initial sequence and the reverse complement can be any length including zero. For example, 5'---TTACGnnnnnn CGTAA---3' is an inverted repeat sequence.

  8. Mobile genetic elements - Wikipedia

    en.wikipedia.org/wiki/Mobile_genetic_elements

    Examples of mobile genetic elements in the cell (left) and the ways they can be acquired (right) Transposition of target sequence into recombination site in DNA by Transposase. Replication of the transposable sequence starts to occur when transposase cuts single strands on opposite sides of the dsDNA.

  9. Dynamic mutation - Wikipedia

    en.wikipedia.org/wiki/Dynamic_mutation

    These mutations, typically short sequences repeated many times, give rise to numerous known diseases, including the trinucleotide repeat disorders. Robert I. Richards and Grant R. Sutherland called these phenomena, in the framework of dynamical genetics, dynamic mutations. Triplet expansion is caused by slippage during DNA replication. Due to ...

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