Differentiate between the lysogenic and lytic cycles.(1 point)
Responses
The virus injects DNA into the host cell during the lysogenic cycle.
The virus injects DNA into the host cell during the lysogenic cycle.
The host cell copies its own DNA during the lytic cycle.
The host cell copies its own DNA during the lytic cycle.
Viral proteins are synthesized during the lysogenic cycle.
Viral proteins are synthesized during the lysogenic cycle.
The host cell is destroyed during the lytic cycle.
The host cell is destroyed during the lytic cycle.
The differences between the lysogenic and lytic cycles are as follows:
Lysogenic Cycle:
- The virus injects its DNA into the host cell, but does not immediately destroy the host cell.
- The viral DNA becomes incorporated into the host cell's DNA, forming a prophage.
- The host cell, with the viral DNA, continues to divide and replicate normally.
- The viral DNA can remain dormant in the host cell for an extended period.
- Under certain conditions, such as stress, the viral DNA can become activated and enter the lytic cycle.
Lytic Cycle:
- The virus injects its DNA into the host cell and takes over the host cell's machinery to replicate its DNA and produce viral proteins.
- The host cell's DNA replication and protein synthesis machinery is shut down.
- The viral DNA is replicated, and new viral particles are assembled inside the host cell.
- The host cell is eventually destroyed or lysed, releasing the newly formed viral particles to infect other cells.
Lysogenic Cycle:
- In the lysogenic cycle, the virus injects its DNA into the host cell.
- The viral DNA integrates into the host cell's DNA and becomes a part of the host cell's genome.
- The host cell copies its own DNA, including the viral DNA, during normal cell division.
- During this cycle, viral proteins are not immediately synthesized.
- The host cell is not immediately destroyed.
Lytic Cycle:
- In the lytic cycle, the virus injects its DNA into the host cell.
- The viral DNA takes control of the host cell's machinery and instructs it to make viral components.
- Viral proteins are synthesized and assembled into new virus particles.
- The host cell is eventually destroyed, releasing the newly formed viruses to infect other cells.