#1
What is the primary function of the viral capsid?
To protect the viral genome
ExplanationCapsid's primary function is to safeguard the viral genome.
#2
What is the name of the process by which a virus enters a host cell?
Penetration
ExplanationPenetration is the process by which viruses enter host cells.
#3
What is the primary function of viral polymerase during replication?
Synthesize viral RNA or DNA
ExplanationViral polymerase synthesizes viral RNA or DNA during replication.
#4
What is the name of the protein shell surrounding the viral genome?
Capsid
ExplanationCapsid is the protein shell surrounding the viral genome.
#5
Which of the following is a characteristic of the eclipse phase of viral replication?
Absence of visible viral particles within the host cell
ExplanationEclipse phase shows absence of visible viral particles within host cells.
#6
Which of the following is a characteristic of the lytic cycle in viral replication?
Immediate destruction of the host cell
ExplanationLytic cycle leads to immediate destruction of host cells.
#7
Which enzyme is essential for reverse transcription in retroviruses?
Reverse transcriptase
ExplanationReverse transcriptase is crucial for reverse transcription in retroviruses.
#8
Which of the following best describes the function of viral envelope proteins?
Facilitate viral attachment to host cells
ExplanationViral envelope proteins help in attaching viruses to host cells.
#9
Which of the following is a characteristic of lysogenic viral replication?
Viral genome integration into the host genome
ExplanationLysogenic replication involves integration of viral genome into host genome.
#10
Which of the following best describes the function of viral protease?
Cleave viral polyproteins into functional components
ExplanationViral protease cleaves viral polyproteins into functional components.
#11
Which step is NOT part of the retroviral life cycle?
Synthesis of DNA from RNA template
ExplanationSynthesis of DNA from RNA template is not part of retroviral life cycle.
#12
What is the role of neuraminidase in the influenza virus life cycle?
Release of newly formed virions from the host cell
ExplanationNeuraminidase facilitates release of new virions from host cells.
#13
Which of the following is NOT a method by which viruses can be classified?
Mode of transmission
ExplanationMode of transmission is not a method for virus classification.
#14
What is the role of viral integrase during the retroviral life cycle?
Integrate viral DNA into host genome
ExplanationViral integrase integrates viral DNA into host genome.
#15
Which of the following is a characteristic feature of the RNA-dependent RNA polymerase (RdRp) enzyme?
Replicates RNA from RNA template
ExplanationRNA-dependent RNA polymerase replicates RNA from RNA template.