18 Questions
What process is described when mature viruses burst out of the host cell to infect new cells?
Lysis
During the lysogenic cycle, what does the phage genome do inside the bacterial host cell?
Integrates into the bacterial chromosome
What term is used for a bacterial host containing an integrated phage genome called a prophage?
Lysogen
What is the name of the process where a bacterium is infected by a temperate phage?
Lysogeny
What triggers the excision of the prophage from the host chromosome?
Environmental stressors
Which term describes the situation when phage-encoded toxin genes increase the bacterial virulence?
Lysogenic conversion
What characterizes a temperate bacteriophage?
Can undergo both lytic and lysogenic cycles
What type of phages are typically latent or inactive within the bacterial cell?
Temperate phages
What happens during specialized transduction in bacteriophages?
Bacterial DNA is transferred between bacteria
Which cycle describes the incorporation of phage DNA into the host genome?
Lysogenic cycle
What can cause a latent phage to enter the lytic cycle?
Environmental stressors
How does a temperate bacteriophage differ from a virulent bacteriophage?
Virulent phages do not integrate into the host chromosome
What is the major difference between the provirus stage and the prophage stage?
Provirus does not undergo excision after splicing into the genome, unlike prophage.
Which category of persistent infections involves the alteration of the host immune response?
Chronic infection
In persistent infections, what are the two primary categories mentioned?
Latent infection and chronic infection
During the viral life cycle, what converts the single-stranded RNA genome into DNA?
Viral enzymes
Which virus causes latent infections such as oral and genital herpes?
Herpes simplex virus
What happens to a virus in a persistent infection where it may remain silent or undergo productive infection without harming or killing the host?
It stays in certain tissues or organs of the infected person.
Explore the processes of lysogeny and the lytic cycle in a temperate bacteriophage. Understand how a prophage persists in a host chromosome until induction triggers excision of the viral genome. Learn more about the dynamics of viral replication and infection.
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