In the lytic cycle of bacteriophage the host DNA is__________?
Correct answer: C. Digested into its nucleotides
- A. Replicated
- B. Turn off by the protein coat.
- C. Digested into its nucleotides
- D. Turned on by the removal of the protein coat
Explanation
During the lytic cycle, bacteriophage nucleases break the host bacterial DNA into nucleotides, which can then be reused for making viral components. Students may choose replication because the viral genome is replicated, but it is the phage DNA, not the host DNA, that is replicated at this stage.
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About Viruses
Viruses are acellular infectious particles made of genetic material enclosed by a protein capsid, sometimes with a lipid envelope. Their replication depends on a host cell and may follow lytic or lysogenic cycles, so viral structure and reproduction differ fundamentally from those of cellular organisms such as bacteria.
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