Podcast
Questions and Answers
A virus integrates its genome into the host cell's DNA. What is this integrated viral DNA called?
A virus integrates its genome into the host cell's DNA. What is this integrated viral DNA called?
- Capsid
- Prophage (correct)
- Viroid
- Prion
What is the primary distinction between temperate and virulent phages?
What is the primary distinction between temperate and virulent phages?
- Temperate phages always kill their host cells, while virulent phages do not.
- Virulent phages have larger genomes than temperate phages.
- Temperate phages only infect animal cells, while virulent phages only infect bacterial cells.
- Virulent phages always kill their host cells, while temperate phages can integrate into the host genome. (correct)
How does the lysogenic cycle differ significantly from the lytic cycle in bacteriophages?
How does the lysogenic cycle differ significantly from the lytic cycle in bacteriophages?
- The lysogenic cycle replicates viral DNA independently, while the lytic cycle requires host cell enzymes.
- The lysogenic cycle occurs only in animal cells, while the lytic cycle occurs only in bacterial cells.
- The lysogenic cycle involves the integration of viral DNA into the host genome without immediate cell destruction, while the lytic cycle involves immediate host cell destruction. (correct)
- The lysogenic cycle immediately destroys the host cell, while the lytic cycle integrates the viral DNA into the host genome.
What is the immediate outcome of the lytic cycle in a bacterial cell?
What is the immediate outcome of the lytic cycle in a bacterial cell?
Which of the following is a characteristic feature of the lysogenic cycle?
Which of the following is a characteristic feature of the lysogenic cycle?
What determines whether a bacteriophage enters the lytic or lysogenic cycle?
What determines whether a bacteriophage enters the lytic or lysogenic cycle?
Which of these viral actions results in the immediate death of the host cell?
Which of these viral actions results in the immediate death of the host cell?
A bacterium containing a prophage exhibits new traits due to the viral genes. What is this phenomenon called?
A bacterium containing a prophage exhibits new traits due to the viral genes. What is this phenomenon called?
Which of the following is NOT a characteristic of the lytic cycle?
Which of the following is NOT a characteristic of the lytic cycle?
In which viral life cycle does the host cell survive and continue to replicate, carrying the viral genome with it?
In which viral life cycle does the host cell survive and continue to replicate, carrying the viral genome with it?
What is the role of the enzyme integrase in the lysogenic cycle?
What is the role of the enzyme integrase in the lysogenic cycle?
A prophage is replicated along with the host cell's DNA. What is the implication of this?
A prophage is replicated along with the host cell's DNA. What is the implication of this?
What environmental factor might trigger a prophage to enter the lytic cycle?
What environmental factor might trigger a prophage to enter the lytic cycle?
How do viruses interact with host cells?
How do viruses interact with host cells?
What is the difference in the immediate outcome of viral genome integration during the lysogenic cycle, compared to the lytic cycle?
What is the difference in the immediate outcome of viral genome integration during the lysogenic cycle, compared to the lytic cycle?
What is a key characteristic that defines bacteriophages?
What is a key characteristic that defines bacteriophages?
How would you describe the parasitic relationship between parasitic worms and their hosts?
How would you describe the parasitic relationship between parasitic worms and their hosts?
What is true of culture media?
What is true of culture media?
During the lytic cycle, what directly facilitates the release of newly assembled phages from the bacterial cell?
During the lytic cycle, what directly facilitates the release of newly assembled phages from the bacterial cell?
A researcher observes that a bacterial culture infected with a bacteriophage shows increased genetic diversity over time. Which viral life cycle is most likely contributing to this phenomenon?
A researcher observes that a bacterial culture infected with a bacteriophage shows increased genetic diversity over time. Which viral life cycle is most likely contributing to this phenomenon?
Flashcards
Lytic Cycle
Lytic Cycle
Viral replication cycle where viruses reproduce using a host cell, then burst out, destroying the cell.
Lysogenic Cycle
Lysogenic Cycle
Viral replication cycle where the viral genome integrates into the host cell's genome without destroying it.
Bacteriophages
Bacteriophages
Viruses that infect and replicate within bacteria.
Lytic Viruses
Lytic Viruses
Signup and view all the flashcards
Lysogenic Viruses
Lysogenic Viruses
Signup and view all the flashcards
Prophage
Prophage
Signup and view all the flashcards
Lytic Cycle Outcome
Lytic Cycle Outcome
Signup and view all the flashcards
Lysogenic Cycle Outcome
Lysogenic Cycle Outcome
Signup and view all the flashcards
Study Notes
- Viral replication includes two distinct cycles: lytic and lysogenic.
Lytic Cycle
- The lytic cycle involves the reproduction of viruses using a host cell to manufacture more viruses.
- These viruses then burst out of the cell, destroying it in the process.
- It involves the virulent phages
- The lytic cycle is a type of viral replication
Lysogenic Cycle
- The lysogenic cycle involves the incorporation of the viral genome into the host cell genome, infecting it from within.
- It does not destroy the cell.
- It involves the temperate phages
- The lysogenic cycle is a type of viral replication
Bacteriophage Life Cycles
- Bacteriophages are viruses that infect and replicate within bacteria.
- They exhibit two primary life cycles: lytic and lysogenic.
Host Cell Interactions
- Viruses interact with host cells in ways that determine their replication strategy.
- Lytic viruses rapidly replicate and kill the host cell.
- Lysogenic viruses integrate their genome into the host, remaining dormant for a period.
Viral Genome Integration
- In the lysogenic cycle, the viral genome integrates into the host cell's DNA.
- The integrated viral DNA is known as a prophage and is replicated along with the host cell's DNA.
Differentiation Between Lytic And Lysogenic
- The lytic cycle results in the immediate destruction of the host cell.
- The lysogenic cycle allows the virus to remain dormant within the host cell for an extended period.
- The choice between lytic and lysogenic cycles depends on factors such as the availability of host cells and environmental conditions.
Parasitic Worms
- Parasitic worms are organisms that live in and feed on a host, causing harm to the host.
Types Of Culture Media
- Culture media are used to grow and maintain microorganisms in the laboratory
- They come in various forms, including broth, agar, and specialized media for specific organisms.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
