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  2. Bacterial transcription - Wikipedia

    en.wikipedia.org/wiki/Bacterial_transcription

    Bacterial transcription is the process in which a segment of bacterial DNA is copied into a newly synthesized strand of messenger RNA (mRNA) with use of the enzyme RNA polymerase. The process occurs in three main steps: initiation, elongation, and termination; and the result is a strand of mRNA that is complementary to a single strand of DNA.

  3. Nick (DNA) - Wikipedia

    en.wikipedia.org/wiki/Nick_(DNA)

    The nic site or nick region is found within the origin of transfer (oriT) site and is a key in starting bacterial conjugation. A single strand of DNA, called the T-strand, is cut at nic by an enzyme called relaxase. [15] This single strand is eventually transferred to the recipient cell during the process of bacterial conjugation.

  4. Bacterial conjugation - Wikipedia

    en.wikipedia.org/wiki/Bacterial_conjugation

    Bacterial conjugation is the transfer of genetic material between bacterial cells by direct cell-to-cell contact or by a bridge-like connection between two cells. [1] This takes place through a pilus. [2][full citation needed] It is a parasexual mode of reproduction in bacteria. A micrograph displaying Escherichia coli undergoing bacterial ...

  5. DNA mismatch repair - Wikipedia

    en.wikipedia.org/wiki/DNA_mismatch_repair

    DNA mismatch repair (MMR) is a system for recognizing and repairing erroneous insertion, deletion, and mis-incorporation of bases that can arise during DNA replication and recombination, as well as repairing some forms of DNA damage. [1][2] Mismatch repair is strand-specific. During DNA synthesis the newly synthesised (daughter) strand will ...

  6. Prokaryotic DNA replication - Wikipedia

    en.wikipedia.org/wiki/Prokaryotic_DNA_replication

    Prokaryotic DNA replication. Prokaryotic DNA Replication is the process by which a prokaryote duplicates its DNA into another copy that is passed on to daughter cells. [1] Although it is often studied in the model organism E. coli, other bacteria show many similarities. [2] Replication is bi-directional and originates at a single origin of ...

  7. DNA - Wikipedia

    en.wikipedia.org/wiki/DNA

    However, branched DNA can occur if a third strand of DNA is introduced and contains adjoining regions able to hybridize with the frayed regions of the pre-existing double-strand. Although the simplest example of branched DNA involves only three strands of DNA, complexes involving additional strands and multiple branches are also possible. [ 69 ]

  8. Origin of replication - Wikipedia

    en.wikipedia.org/wiki/Origin_of_replication

    The origin of replication (also called the replication origin) is a particular sequence in a genome at which replication is initiated. [1] 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 ...

  9. Circular chromosome - Wikipedia

    en.wikipedia.org/wiki/Circular_chromosome

    Each half of the chromosome replicated by one replication fork is called a "replichore". (Graphic computer art by Daniel Yuen) A circular chromosome is a chromosome in bacteria, archaea, mitochondria, and chloroplasts, in the form of a molecule of circular DNA, unlike the linear chromosome of most eukaryotes. Most prokaryote chromosomes contain ...