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Once inside a cell, the virus releases its DNA or RNA (which contains the information needed to create new virus particles) and takes control of some aspects of the cell's metabolism. The components of the virus are then manufactured inside the cell and must be properly assembled for the virus to be released and remain infectious.
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What is the viral DNA that is embedded in a host's DNA?
The viral DNA that is embedded in a host's DNA is called a provirus.
Describe what happens to the host cell of a lysogenic virus?
In the lysogenic cycle, the viral DNA or RNA enters the cell and integrates into the host DNA as a new set of genes called prophage. That is, the viral DNA becomes part of the cell's genetic material. It does not destroy the host cell.
What are the 3 stes of lysogenic infection?
The three stages of lysogenic infection are attachment, insertion (integration) of viral DNA into host DNA, and replication of the viral DNA along with host DNA.
Which of the following lists the steps of HIV replication in the correct order?
HIV binds with the CD4 protein on the surface of the T4 lymphocyte. The HIV fuses with the T4 lymphocyte. Viral RNA (ribonucleic acid) and reverse transcriptase enter the target cell. Reverse transcriptase produces viral DNA (deoxyribonucleic acid) from the viral RNA. Viral DNA enters the target cell's nucleus and splices into the target cell's DNA. The target cell uses the information on the viral DNA and produces the pieces needed for building copies of HIV. The pieces are assembled into new copies of HIV. This process uses an enzyme called protease. Copies of HIV are released from the target cell in a process called budding.
What are the differences between alytic infection and lysogemic infection?
In a lytic infection, the virus enters the host cell, takes over the cell machinery to replicate itself, and then destroys the host cell to release new viral particles. In contrast, in a lysogenic infection, the viral DNA integrates into the host cell's DNA and remains dormant without causing immediate harm; the viral DNA can be activated to enter the lytic cycle under certain conditions.
Where does the newly produced viral DNA go?
The newly produced viral DNA typically enters the host cell's nucleus and integrates into the host cell's DNA. This allows the virus to hijack the cell's machinery and replicate itself.
What is the viral DNA that is embedded in a host's DNA?
The viral DNA that is embedded in a host's DNA is called a provirus.
Describe what happens to the host cell of a lysogenic virus?
In the lysogenic cycle, the viral DNA or RNA enters the cell and integrates into the host DNA as a new set of genes called prophage. That is, the viral DNA becomes part of the cell's genetic material. It does not destroy the host cell.
What happens after genetically modified plasmids inserted into bacteria?
Plasmids are cloned and start producing protein .
What enzyme inserts viral DNA into the host's chromosomal DNA?
The enzyme responsible for inserting viral DNA into the host's chromosomal DNA is called integrase. Integrase plays a crucial role in the integration of the viral genome into the host cell's DNA, allowing the virus to replicate and persist within the host cell.
What are the 3 stes of lysogenic infection?
The three stages of lysogenic infection are attachment, insertion (integration) of viral DNA into host DNA, and replication of the viral DNA along with host DNA.
Why do viruses depend in host cells?
Viruses are composed of protein and DNA. The DNA encodes the protein as well as the DNA for the virus. Viruses depend on host cells because they are incapable of reproducing themselves. They enter the host cell and the viral DNA is inserted into the host DNA. The virus then "hijacks" the host cells replication machinery to make more viral protein and viral DNA.
Which of the following lists the steps of HIV replication in the correct order?
HIV binds with the CD4 protein on the surface of the T4 lymphocyte. The HIV fuses with the T4 lymphocyte. Viral RNA (ribonucleic acid) and reverse transcriptase enter the target cell. Reverse transcriptase produces viral DNA (deoxyribonucleic acid) from the viral RNA. Viral DNA enters the target cell's nucleus and splices into the target cell's DNA. The target cell uses the information on the viral DNA and produces the pieces needed for building copies of HIV. The pieces are assembled into new copies of HIV. This process uses an enzyme called protease. Copies of HIV are released from the target cell in a process called budding.
What are the differences between alytic infection and lysogemic infection?
In a lytic infection, the virus enters the host cell, takes over the cell machinery to replicate itself, and then destroys the host cell to release new viral particles. In contrast, in a lysogenic infection, the viral DNA integrates into the host cell's DNA and remains dormant without causing immediate harm; the viral DNA can be activated to enter the lytic cycle under certain conditions.
What happens to the host cell at the end of a lysogenic cycle?
At the end of the lysogenic cycle, the host cell typically remains intact and viable. The viral DNA is integrated into the host's genome as a prophage, allowing it to replicate along with the host's DNA during cell division. This can lead to the production of new viral particles later if the virus enters the lytic cycle, causing eventual cell lysis. However, during the lysogenic phase, the host cell continues to grow and divide without immediate harm.
What happens to the provirus when the host cell Divides?
When a host cell divides, the provirus, which is the viral DNA integrated into the host's genome, is replicated along with the host's DNA. As a result, each daughter cell inherits the proviral DNA, maintaining a reservoir of the virus within the host's cellular lineage. This allows the virus to persist in the host and can lead to subsequent viral reactivation and replication if conditions become favorable.
What is the viral DNA that has attached to a host cell's chromosomes and that is replicated with the chromosome's DNA?
The viral DNA that has integrated into a host cell's chromosome is called a provirus or prophage. This integrated viral DNA is replicated along with the host cell's DNA during cell division, allowing the virus to be passed on to daughter cells.
