The correct sequence of the steps of the lytic cycle is
Correct answer: B. attachment, penetration, biosynthesis, assembly, release
- A. release, assembly, biosynthesis, penetration, attachment
- B. attachment, penetration, biosynthesis, assembly, release
- C. biosynthesis, attachment, release, penetration, assembly
- D. penetration, release, attachment, assembly, biosynthesis
Explanation
The phage first attaches by its tail fibres, injects its DNA, then commandeers the host to make viral parts, assembles complete particles and finally releases them by lysing the cell. Any sequence that starts later in the list reverses cause and effect.
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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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