15 Questions
Which of the following is a unique characteristic of viruses?
Protein coat surrounding genetic material
What is the function of the capsid in a virus?
To provide shape and structural integrity
Which type of symmetry is exhibited by the Adenovirus?
Icosahedral symmetry
What happens during the replication stage of the lytic cycle?
The virus injects its genetic material into the host cell
What is the role of the envelope in some viruses?
To protect the viral genetic material
Which cycle involves the viral DNA integrating into the host cell genome?
Lysogenic cycle
What happens during the release stage of the lytic cycle?
The host cell is lysed and new viral particles are released
Which event triggers the prophage to become active?
Environmental cues
What happens when the prophage is excised from the host genome?
It initiates the lytic cycle
Which hypothesis suggests that viruses originated from fragments of cellular genetic material?
Escape Hypothesis
According to the Regressive Hypothesis, what did viruses originate from?
Parasitic cellular organisms
What is one of the implications of rapid evolution in viruses?
Antigenic drift
What is one of the challenges posed by rapid evolution for vaccination?
Antigenic drift
What is one of the ways viruses can undergo genetic recombination?
Multiple strains infecting the same host cell
What exerts selective pressure on viral variants?
All of the above
Test your knowledge of viruses with this quiz! Learn about their unique characteristics, structural features, and replication process. Challenge yourself to understand how these non-living infectious agents function and require a host cell to replicate.
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