Multiple Choice
In which viral replication cycle do the viral genes become latent?
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17. Viruses
Viruses
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In the viral replication process, can the lysogenic cycle transition into the lytic cycle?
A
No, the lysogenic cycle and lytic cycle are completely independent processes.
B
Yes, but only if the host cell is a bacterium.
C
No, once a virus enters the lysogenic cycle, it cannot change to the lytic cycle.
D
Yes, environmental triggers can cause the lysogenic cycle to enter the lytic cycle.
Verified step by step guidance1
Understand the two viral replication cycles: the lysogenic cycle and the lytic cycle. The lysogenic cycle involves the integration of viral DNA into the host cell's genome, where it can remain dormant for an extended period. The lytic cycle involves the active replication of the virus, leading to the destruction of the host cell.
Recognize that the lysogenic cycle can transition into the lytic cycle. This transition is not automatic but can occur under certain conditions.
Identify the environmental triggers that can cause this transition. Factors such as UV radiation, chemical exposure, or stress on the host cell can activate the viral DNA, prompting it to enter the lytic cycle.
Acknowledge that this transition is a survival strategy for the virus. By switching to the lytic cycle, the virus can produce new viral particles and spread to new host cells.
Conclude that the statement 'Yes, environmental triggers can cause the lysogenic cycle to enter the lytic cycle' is correct, as it reflects the ability of the virus to switch cycles in response to environmental changes.
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