Multiple Choice
Viruses that infect bacteria are called __________.
17. Viruses
Viruses
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The phage reproductive cycle that kills the bacterial host cell is a __________ cycle, and a phage that always reproduces this way is a __________ phage.
A
lytic; lysogenic
B
lysogenic; temperate
C
virulent; lytic
D
lysogenic; virulent
E
lytic; virulent
Verified step by step guidance1
Understand the two main types of phage reproductive cycles: the lytic cycle and the lysogenic cycle.
In the lytic cycle, the phage takes over the host cell's machinery to replicate its own genetic material and produce new phage particles, eventually causing the host cell to burst (lyse) and release the new phages.
In the lysogenic cycle, the phage's DNA integrates into the host cell's genome and replicates along with it without causing immediate harm to the host. The phage can later enter the lytic cycle.
A phage that always reproduces through the lytic cycle, causing the destruction of the host cell, is known as a virulent phage.
Therefore, the phage reproductive cycle that kills the bacterial host cell is the lytic cycle, and a phage that always reproduces this way is a virulent phage.
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