The lytic cycle of a bacteriophage ends with
Correct answer: B. bursting of the bacterium and release of new phage particles
- A. integration of viral DNA into the host chromosome
- B. bursting of the bacterium and release of new phage particles
- C. the virus becoming permanently dormant
- D. the bacterium turning into a virus
Explanation
After multiplication and assembly, lysozyme made by the phage dissolves the bacterial wall and the progeny escape to infect fresh cells. Integration into the chromosome describes the lysogenic route instead, a distinction examiners test repeatedly.
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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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