#1
Which of the following is NOT a characteristic of viruses?
They can replicate outside of a host cell
They contain genetic material
They require a host to replicate
They can mutate rapidly
#2
Which of the following is NOT a method of viral entry into host cells?
Endocytosis
Fusion with host cell membrane
Phagocytosis
Direct injection of nucleic acid
#3
Which of the following is a viral classification category based on the host range?
Generalist viruses
Specialist viruses
ICTV Classification
Baltimore Classification
#4
Which of the following is NOT a type of viral nucleic acid?
#5
Which of the following is NOT a type of viral capsid symmetry?
Icosahedral
Helical
Complex
Linear
#6
What is the primary component of a viral capsid?
Protein
Lipid
Nucleic Acid
Carbohydrate
#7
Which classification system is primarily based on viral genome structure?
Baltimore Classification
Linnaean Classification
Whittaker Classification
Darwinian Classification
#8
Which of the following is a characteristic feature of enveloped viruses?
They lack a protein coat
They are more stable outside the host cell
They contain glycoproteins
They have a rigid capsid
#9
What is the function of a viral envelope?
To provide protection against host immune response
To facilitate viral attachment to host cells
To regulate viral gene expression
To assist in viral replication
#10
Which viral classification system is based on the type of nucleic acid present in the virus?
Linnaean Classification
Baltimore Classification
ICTV Classification
Whittaker Classification
#11
What is the function of viral neuraminidase?
It aids in viral replication
It facilitates viral attachment to host cells
It prevents viral assembly
It assists in the release of viral particles from host cells
#12
What is the role of viral integrase in the viral life cycle?
It aids in viral entry into host cells
It assists in viral replication
It facilitates integration of viral DNA into the host genome
It promotes viral assembly
#13
Which classification system categorizes viruses based on their target tissue?
Baltimore Classification
ICTV Classification
Tropism Classification
Linnaean Classification
#14
Which viral classification system categorizes viruses based on their morphology?
ICTV Classification
Morphological Classification
Tropism Classification
Linnaean Classification
#15
What is the role of viral reverse transcriptase?
It synthesizes viral mRNA
It converts viral RNA into DNA
It facilitates integration of viral DNA into the host genome
It promotes viral assembly
#16
Which of the following is a controversial topic related to viruses?
Origin of life
Theory of relativity
Big Bang theory
Theory of evolution
#17
What is the significance of viral reassortment?
It leads to the formation of new viral strains
It enhances the stability of viral genomes
It prevents viral replication
It inhibits viral mutation
#18
Which viral classification system considers the mode of transmission?
Baltimore Classification
Mendelian Classification
ICTV Classification
Linnaean Classification
#19
What is the significance of viral quasispecies?
It promotes host cell survival
It increases viral sensitivity to antiviral drugs
It enhances viral fitness and adaptability
It prevents viral mutation
#20
Which viral structure plays a crucial role in host cell recognition?
Viral envelope
Viral capsid
Viral nucleic acid
Viral polymerase
#21
What is the concept of viral latency?
It refers to the period between viral entry and host cell lysis
It describes the ability of viruses to undergo genetic recombination
It represents the state of viral dormancy within host cells
It denotes the release of mature viral particles from host cells
#22
What is the primary difference between positive-sense RNA viruses and negative-sense RNA viruses?
Positive-sense RNA viruses can be directly translated into proteins, while negative-sense RNA viruses cannot.
Negative-sense RNA viruses have a higher mutation rate than positive-sense RNA viruses.
Positive-sense RNA viruses are enveloped, while negative-sense RNA viruses are non-enveloped.
Negative-sense RNA viruses have DNA genomes, while positive-sense RNA viruses have RNA genomes.
#23
What is the mechanism of action of viral protease?
It facilitates viral attachment to host cells
It promotes viral replication
It cleaves viral polyproteins into functional proteins
It inhibits host cell immune response
#24
Which classification system categorizes viruses based on their genetic relatedness?
Baltimore Classification
ICTV Classification
Phylogenetic Classification
Linnaean Classification
#25
What is the significance of viral latency in the context of viral infections?
It represents the period of rapid viral replication
It allows viruses to remain dormant within host cells
It enhances viral transmission between hosts
It leads to the formation of viral quasispecies