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What is meant by lysogeny?
lysogeny, type of life cycle that takes place when a bacteriophage infects certain types of bacteria. In this process, the genome (the collection of genes in the nucleic acid core of a virus) of the bacteriophage stably integrates into the chromosome of the host bacterium and replicates in concert with it.
What is lysogenic phage definition?
Lysogenic phages incorporate their nucleic acid into the chromosome of the host cell and replicate with it as a unit without destroying the cell. Under certain conditions lysogenic phages can be induced to follow a lytic cycle. Other life cycles, including pseudolysogeny and chronic infection, also exist.
What are lysogenic infections?
Lysogeny, or the lysogenic cycle, is one of two cycles of viral reproduction (the lytic cycle being the other). Lysogeny is characterized by integration of the bacteriophage nucleic acid into the host bacterium’s genome or formation of a circular replicon in the bacterial cytoplasm.
What is Lysogen in microbiology?
A lysogen or lysogenic bacterium is a bacterial cell which can produce and transfer the ability to produce a phage. A prophage is either integrated into the host bacteria’s chromosome or more rarely exists as a stable plasmid within the host cell.
What is the best definition of Lysogeny?
Lysogeny: A state in which phage DNA is incorporated into the host cell without lysis.
What is the difference between lysogeny and latency?
Virus latency (or viral latency) is the ability of a pathogenic virus to lie dormant (latent) within a cell, denoted as the lysogenic part of the viral life cycle. A latent viral infection is a type of persistent viral infection which is distinguished from a chronic viral infection.
What is Lysogeny applicable?
Lysogeny might be an adaptation to conditions where phage-susceptible bacteria are rare, since lysogenic bacteria (and hence their resident phage) can replicate regardless of whether uninfected bacteria are present.
What is the significance of Lysogeny?
Lysogeny protects a virus from environmental factors (e.g., inactivation by UV sunlight or proteolytic digestion) that may damage the viral capsid or nucleic acid while on occasion conferring “immunity” to the host via gene expression that prevents coinfection by other viruses (Jiang and Paul, 1996).
What is the difference between Lysogeny and latency?
What is the definition of lysogeny?
lysogeny – the condition of a host bacterium that has incorporated a phage into its own genetic material; “when a phage infects a bacterium it can either destroy its host or be incorporated in the host genome in a state of lysogeny”. lysogenicity.
What is an example of a lysogenic virus?
A common example of a lysogenic virus is lambda phage. However, lambda phage can also enter the lytic cycle. In this manner, some viruses can remain dormant for years at a time, activating under certain environmental conditions to begin replication under the lytic cycle.
What is the definition of lysogenic biology?
Jump to navigation Jump to search. A lysogen or lysogenic bacterium is a bacterial cell which can produce and transfer the ability to produce a phage. A prophage is either integrated into the host bacteria’s chromosome or more rarely exists as a stable plasmid within the host cell.