0
What else can I help you with?
What is the phage DNA that is integrated into a host cell's chromosome is called a?
Phage DNA that is integrated into a host's cell chromosome is a bacteriophage. They behave as lytic or lysogenic. Lytic breaks open the host after replication, , lysogenic does not destroy the host.
What is another term for a lysogenic phage?
temperate phage
What are temperate phages?
Temperate phages are bacteriophages that can follow two replication pathways: lytic and lysogenic. In the lytic cycle, they infect a bacterial host and replicate rapidly, causing cell lysis. In the lysogenic cycle, they integrate their DNA into the host genome, replicating along with the host without causing immediate cell lysis.
How does the reproduction of HIV and lambda phage differ?
The Lambda Phage bacterial virus replicates itself whilst the HIV virus binds itself to existing cells and damages them. Lamba Phage increases with a "lysogenic" cycle, whilst the increase of HIV is known as "Lytic".
What is the difference between a virulent phage and a temperate phage?
In virology, temperate refers to the life cycle some phages are able to perform. Atemperate phage can integrate its genome into its host bacterium's chromosome, becoming a lysogen known as a prophage. A temperate phage is also able to undergo lytic life cycles, where the prophage is expressed, replicates the phage genome and produces phage progeny and the progeny phage leave the bacterium. The virulent phages have only lytic lifecycles and thus infection results in the host cell's death (due to lytic cell destruction-the phage replicates itself and then bursts the cell, releasing many copies).
What is the difference between virulent phage and prophage?
temperate refers to the life cycle some phages are able to perform. A temperate phage can integrate its genome into its host bacterium's chromosome, becoming a lysogen known as a prophage. A temperate phage is also able to undergo lytic life cycles, where the prophage is expressed, replicates the phage genome and produces phage progeny and the progeny phage leave the bacterium.The virulent phages have only lytic lifecycles and thus infection results in the host cell's death (due to lytic cell destruction-the phage replicates itself and then bursts the cell, releasing many copies).So they are both the same in that they both require a host cell to reproduce. They both can have lytic lifecycles but only the temperate phage can "hitch a ride" in the host cell by integrating into the genome.
What phage in the reproductive cycle kills the bacterial host cell?
In the lytic cycle, a phage kills the bacterial host cell by causing it to burst (lysis) to release new phage particles. The phage replicates inside the host cell until it reaches a critical point, then the host cell is ruptured to release the new phages to infect other host cells.
What are the two ways a virus multiplies?
A bacteriophage ( virus that infect bacteria) can multiply in a cell by two ways:lytic and lysogenic cycle.In lytic cycle, the phage DNA enters the cell, replicate and assembled within the cell and released outside by rupturing the host. It continues to invade the other bacteria.In case of lysogenic cycle the phage DNA once it enter the host cell gets integrated into the host genome and multiply along with host DNA. It remains latent. Upon proper induction, it undergoes lytic cycle again.The viruses that multiply by integrating into the host genome are widely used in gene therapy.
What does it mean for a virus to have a lysogenic reproductive cycle?
The lysogenic cycle replicates the phage genome without destroying the host. Similar to Lytic reproduction, Lysogenic also begins when the phage inserts its DNA or RNA into the host cell through its surface. Once the nucleic acid is inside the cell, it forms a circle, and becomes a part of the genome of the host cell. It does this through genetic recombination, or crossing over. Once it joins the host’s genome, it is called a prophage. Since it is a part of the host cell’s genome, the phage’s genetic information is copied and distributed to the daughter cells of the host cell, which continues dividing naturally. This allows the prophage to be repeatedly copied and passed on without destroying the host cell it depends on for metabolic and reproduction purposes. In order for actual active phages to be produced, the segment of genome from the original phage exits the genome of the host cell and becomes independent. When this occurs, it begins the lytic cycle, destroying the cell, but producing new and functional phages.
What is temperate phage superinfection immunity?
c. Repression of the phage genome - A phage coded protein, called a repressor, is made which binds to a particular site on the phage DNA, called the operator, and shuts off transcription of most phage genes EXCEPT the repressor gene. The result is a stable repressed phage genome which is integrated into the host chromosome. Each temperate phage will only repress its own DNA and not that from other phage, so that repression is very specific (immunity to superinfection with the same phage).Reference: http://pathmicro.med.sc.edu/mayer/phage.htm
The viral reproductive cycle in which a phage injects its DNA into a host cell and the DNA is inserted into the host cells chromosome is called the what cycle?
The viral reproductive cycle you are describing is called the lysogenic cycle. In this cycle, the viral DNA integrates into the host cell's chromosome, remaining dormant until it is triggered to enter the lytic cycle.
What is a lysogenic bacteriophage?
Lysogenic is when the virus enters and binds into the hosts DNA and one could replicate slowly or two when the virus sense the host cell is about to die, the virus will go into lyic cycle and replicate and kills the host cell.
