Describe the difference between the bacteriophage lytic and lysogenic cycle.
Phages are among the most widespread entities in the biosphere. It is assumed that there exist about more than 1031 bacteriophages on this Earth, in combination with bacteria.
Phage is also known as bacteriophage. It is usually a virus which infects and replicates inside the bacteria and other single celled organisms (archaea).
These are simple organisms which contain a core of nucleic acid (genetic material). A protein capsid surrounds the nucleic acid. The nucleic acid could be either DNA or RNA and also it might be single or double -stranded.
Phages cannot reproduce on their own as they use their biological machinery in the host cell for this purpose. They infect the host cell for their replication.
Viral replication can be defined as the formation of living viruses during the course of infection in the cell of the host organism. Viruses must enter into the cell before the viral replication can take place. By the production of new and plentiful copies of its genome, the virus remains infecting new host cells. Viruses can reproduce by either the lytic or lysogenic life cycles.
The comparison between the lytic and lysogenic cycle is shown in the given table:
Criteria for comparison
Lytic cell cycle
Lysogenic cell cycle
1. Begin of infection.
It begins with the attachment of the bacteriophage to the host cell.
It begins just like the lytic life cycle or previously integrated viral DNA with the host DNA.
2. Types of phages present.
Bacteriophages that only use the lytic cycle are known as virulent phages.
Bacteriophages that use the lytic cycle and lysogenic are known as temperate phages.
3. Location of viral DNA.
It is present as a separate and free-floating fragment within the host cell.
It is present inside the host DNA.
4. Replication of viral DNA.
It replicates distinctly from the host cell DNA.
It replicates along with the host DNA.
5. Effect on host cell.
It leads to the destruction or lysis of the infected cell.
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