Podcast
Questions and Answers
Which of the following is a unique characteristic of viruses?
Which of the following is a unique characteristic of viruses?
- Large size (over 1 micrometer)
- Ability to replicate without a host cell
- Protein coat surrounding genetic material (correct)
- Cellular structure and metabolism
What is the function of the capsid in a virus?
What is the function of the capsid in a virus?
- To recognize and attach to host cell receptors
- To provide shape and structural integrity (correct)
- To carry the necessary instructions for replication
- To release newly formed viruses
Which type of symmetry is exhibited by the Adenovirus?
Which type of symmetry is exhibited by the Adenovirus?
- Icosahedral symmetry (correct)
- No specific symmetry
- Helical symmetry
- Complex structure
What happens during the replication stage of the lytic cycle?
What happens during the replication stage of the lytic cycle?
What is the role of the envelope in some viruses?
What is the role of the envelope in some viruses?
Which cycle involves the viral DNA integrating into the host cell genome?
Which cycle involves the viral DNA integrating into the host cell genome?
What happens during the release stage of the lytic cycle?
What happens during the release stage of the lytic cycle?
Which event triggers the prophage to become active?
Which event triggers the prophage to become active?
What happens when the prophage is excised from the host genome?
What happens when the prophage is excised from the host genome?
Which hypothesis suggests that viruses originated from fragments of cellular genetic material?
Which hypothesis suggests that viruses originated from fragments of cellular genetic material?
According to the Regressive Hypothesis, what did viruses originate from?
According to the Regressive Hypothesis, what did viruses originate from?
What is one of the implications of rapid evolution in viruses?
What is one of the implications of rapid evolution in viruses?
What is one of the challenges posed by rapid evolution for vaccination?
What is one of the challenges posed by rapid evolution for vaccination?
What is one of the ways viruses can undergo genetic recombination?
What is one of the ways viruses can undergo genetic recombination?
What exerts selective pressure on viral variants?
What exerts selective pressure on viral variants?
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