Multiple Choice
Which structure is commonly found in both viruses and cells?
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17. Viruses
Viruses
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In the lysogenic cycle, what happens to the viral DNA after it enters the host cell?
A
The viral DNA integrates into the host cell's genome.
B
The viral DNA immediately begins to replicate and produce new viruses.
C
The viral DNA remains in the cytoplasm and does not integrate into the host genome.
D
The viral DNA is destroyed by the host cell's immune system.
Verified step by step guidance1
Understand the lysogenic cycle: The lysogenic cycle is one of the two cycles of viral reproduction, the other being the lytic cycle. In the lysogenic cycle, the viral DNA integrates into the host cell's genome and can remain dormant for a period of time.
Identify the role of viral DNA: In the lysogenic cycle, after the viral DNA enters the host cell, it integrates into the host cell's genome. This integration allows the viral DNA to be replicated along with the host cell's DNA during cell division.
Differentiate from the lytic cycle: Unlike the lytic cycle, where the viral DNA immediately begins to replicate and produce new viruses, the lysogenic cycle involves the integration of viral DNA into the host genome, where it can remain inactive.
Consider the options: Evaluate the given options based on the understanding of the lysogenic cycle. The correct process involves the integration of viral DNA into the host genome, not immediate replication, remaining in the cytoplasm, or being destroyed by the host's immune system.
Conclude with the correct process: The viral DNA integrates into the host cell's genome, which is a defining characteristic of the lysogenic cycle, allowing the virus to persist in the host without causing immediate harm.
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