SCIENCE
VIRUS AND BACTERIA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A lysogenic virus does not act on bacteria as a lytic virus does.
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A lysogenic virus can remain in the host DNA for a longer period without becoming active.
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A lysogenic virus contains RNA instead of DNA.
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A lysogenic virus directs the production of new viruses right away.
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Detailed explanation-1: -One key difference between the lytic cycle and the lysogenic cycle is that the latter does not lyse the host cell straight away. Phages that replicate only via the lytic cycle are known as virulent phages while phages that replicate using both lytic and lysogenic cycles are known as temperate phages.
Detailed explanation-2: -Unlike a lytic virus, a lysogenic virus does not cause the host cell to lyse away. A lysogenic virus can remain inactive for a period of time. In lysogenic infection, viral DNA gets integrated with the host cell’s DNA, where it is copied along with the host cell’s DNA when the host cell replicates.
Detailed explanation-3: -What is the main difference between a lytic and lysogenic cycle? In the lytic cycle, the viral genome does not incorporate into the host genome. In the lysogenic cycle, the viral genome incorporates into the host genome and stays there throughout replication until the lytic cycle is triggered.
Detailed explanation-4: -The lytic cycle is different from the lysogenic cycle because the lytic cycle causes the death of the infected cell due to lysis, while the lysogenic cycle does not kill the cell. Viruses known as bacteriophages infect bacteria, and many can undergo both types of cycles.