enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Prokaryotic DNA replication - Wikipedia

    en.wikipedia.org/wiki/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 replication (OriC). [3]

  3. Prokaryote - Wikipedia

    en.wikipedia.org/wiki/Prokaryote

    Both eukaryotes and prokaryotes contain ribosomes which produce proteins as specified by the cell's DNA. Prokaryote ribosomes are smaller than those in eukaryote cytoplasm, but similar to those inside mitochondria and chloroplasts , one of several lines of evidence that those organelles derive from bacteria incorporated by symbiogenesis .

  4. DNA replication - Wikipedia

    en.wikipedia.org/wiki/DNA_replication

    This is essential for cell division during growth and repair of damaged tissues, while it also ensures that each of the new cells receives its own copy of the DNA. [5] The cell possesses the distinctive property of division, which makes replication of DNA essential. DNA is made up of a double helix of two complementary strands.

  5. Lysogenic cycle - Wikipedia

    en.wikipedia.org/wiki/Lysogenic_cycle

    The prokaryotic cell is shown with its DNA, in green. 2. The bacteriophage attaches and releases its DNA, shown in red, into the prokaryotic cell. 3. The phage DNA then moves through the cell to the host's DNA. 4. The phage DNA integrates itself into the host cell's DNA, creating prophage. 5. The prophage then remains dormant until the host ...

  6. DNA - Wikipedia

    en.wikipedia.org/wiki/DNA

    Genomic DNA is tightly and orderly packed in the process called DNA condensation, to fit the small available volumes of the cell. In eukaryotes, DNA is located in the cell nucleus, with small amounts in mitochondria and chloroplasts. In prokaryotes, the DNA is held within an irregularly shaped body in the cytoplasm called the nucleoid. [97]

  7. Cell division - Wikipedia

    en.wikipedia.org/wiki/Cell_division

    The binding of this Rb protein ensures that cells do not enter the S phase prematurely; however, if it is not able to be phosphorylated by these cyclin-cdk complexes, the protein will remain, and the cell will be halted in the G1 phase of the cell cycle. [43] If DNA is damaged, the cell can also alter the Akt pathway in which BAD is ...

  8. Pre-replication complex - Wikipedia

    en.wikipedia.org/wiki/Pre-replication_complex

    In prokaryotes, various studies have demonstrated that the pre-RC is a complex that is only present for a fraction of the cell cycle. Once a cellular division occurs, the pre-RC must revert back to the bORC to ensure that only one round of DNA replication occurs during division.

  9. Circular chromosome - Wikipedia

    en.wikipedia.org/wiki/Circular_chromosome

    The crystal structure of the Ter DNA-Tus protein complex (A) showing the nonblocking and the fork-blocking faces of Tus. (B) A cross-sectional view of the helicase-arresting surface. Replication of the DNA separating the opposing replication forks leaves the completed chromosomes joined as ‘catenanes’ or topologically interlinked circles ...