4
QuizMultiple Choice

Viruses

Question 4 • Biology - SC3209 IC

Which best describes the lytic and lysogenic cycles?

Answer
A
Unlike the lytic cycle, the lysogenic cycle involves production of virus particles.
B
Unlike the lysogenic cycle, the lytic cycle involves destruction of the host.
C
Symptoms of infection appear in the lysogenic cycle but not in the lytic cycle.
D
For virulent viruses, the lysogenic cycle is the main way of replicating.

Explanation

In the lytic cycle, a virus replicates inside the host cell and eventually causes the cell to burst, destroying it. In the lysogenic cycle, viral genetic material can remain integrated in the host’s DNA without immediately destroying the cell. So the best description is that the lytic cycle involves destruction of the host.

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