Protein coasts of viruses are synthesized in____________?
Correct answer: A. Lytic cycle
- A. Lytic cycle
- B. Lysogenic cycle
- C. Both a & b
- D. All of these
Explanation
During the lytic cycle, viral genes direct the host cell to synthesize viral nucleic acid and capsid proteins, assemble new virions and finally lyse the cell. In the lysogenic cycle, the viral genome remains integrated with the host genome and viral coat proteins are generally not produced until induction into the lytic cycle. Students may choose c because both cycles are stages of viral infection, but they do not both actively produce complete viral coats.
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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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