How is the lytic cycle different from the lysogenic cycle?A. The phage infects a cell in the lytic cycle.B. In the lytic cycle, new phages are produced immediately; in the lysogenic cycle, phage DNA is merged into the host genome.C. The phage moves on to infect other cells in the lysogenic phase.D. The lytic cycle contains the formation of a prophage.
Question
How is the lytic cycle different from the lysogenic cycle?A. The phage infects a cell in the lytic cycle.B. In the lytic cycle, new phages are produced immediately; in the lysogenic cycle, phage DNA is merged into the host genome.C. The phage moves on to infect other cells in the lysogenic phase.D. The lytic cycle contains the formation of a prophage.
Solution
The lytic cycle is different from the lysogenic cycle in several ways. Let's break it down step by step:
A. In the lytic cycle, the phage infects a cell. This means that the phage attaches to the host cell and injects its genetic material into it.
B. In the lytic cycle, new phages are produced immediately. Once the phage has infected the cell, it takes over the cell's machinery to replicate its own genetic material and produce new phages. This leads to the eventual lysis, or bursting, of the host cell and the release of the newly formed phages.
In contrast, in the lysogenic cycle, phage DNA is merged into the host genome. Instead of immediately taking over the cell's machinery, the phage DNA integrates into the host cell's DNA. This integrated phage DNA is called a prophage.
C. The phage moves on to infect other cells in the lysogenic phase. During the lysogenic phase, the host cell continues to divide and replicate its own DNA, including the integrated phage DNA. As a result, the phage DNA is passed on to daughter cells during cell division, allowing the phage to spread to other cells.
D. The lytic cycle contains the formation of a prophage. In the lytic cycle, there is no formation of a prophage. Instead, the phage immediately takes over the host cell's machinery to produce new phages and eventually lyse the host cell.
In summary, the lytic cycle involves immediate phage infection, production of new phages, and lysis of the host cell, while the lysogenic cycle involves integration of phage DNA into the host genome, replication of the integrated phage DNA, and the potential for the phage to spread to other cells.
Similar Questions
How is the lytic cycle different from the lysogenic cycle?
The diagram models the lytic and lysogenic reproductive cycles of virusesWhich cycle would maintain the DNA of the virus over several generations and why?A. Lytic, because the viral DNA can be exised from the host cell's DNA when under stress.B. Lytic, because the viral DNA can be passed on when the host cell replicates.C. Lysogenic, because the viral DNA can be excised from the host cell's DNA when under stress.D. Lysogenic, because the viral DNA can be passed on when the host cell replicates.
What happens during the release step in the lytic or lysogenic cycle of replication?
A phage that replicates inside the host cell and then lyses its host during its release is a _________________.Group of answer choicesdormant phagelatent phagevirulent or lytic phage.lysogenic phage
A phage that replicates inside the host cell and then lyses its host during its release is a A. virulent or lytic phage. B. latent phage. C. lysogenic phage. D. dormant phage
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