Why are viruses often referred to as 'selfish genes' or the ultimate parasites? Viruses are visible under light microscopy Viruses are 'selfish genes' or the ultimate parasites Viruses can replicate independently Viruses are beneficial to their hosts

Viruses are 'selfish genes' or the ultimate parasites

What type of genetic material do viruses contain? Viruses contain only DNA Viruses contain either DNA or RNA Viruses contain both DNA and RNA Viruses contain only RNA

Viruses contain either DNA or RNA

Do viruses contain both DNA and RNA? False, viruses contain only DNA False, viruses contain either DNA or RNA, not both True, viruses contain both DNA and RNA False, viruses contain only RNA

False, viruses contain either DNA or RNA, not both

What type of existence do viruses have? Viruses are obligate intracellular existence Viruses are facultative extracellular existence Viruses are obligate extracellular existence Viruses are facultative intracellular existence

Viruses are obligate intracellular existence

What are the characteristics of viruses in terms of size and visibility? Viruses are small in size; not visible by light microscopy; 20 to 300 nm in diameter Viruses are small but visible by light microscopy Viruses are large and not visible by light microscopy Viruses are large and visible by light microscopy

Viruses are small in size; not visible by light microscopy; 20 to 300 nm in diameter

What unconventional agents are considered viruses? Viruses are bacteria and fungi Viruses are only viroids Viruses are viroids and unconventional agents (e.g. prions) Viruses are only prions

Viruses are viroids and unconventional agents (e.g. prions)

Comprehensive Study of Viral Structure, Classification, and Replication

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Biology - Virology

user_kumartyv Created by 7 mon ago

Cards in this deck(92)

Why are viruses often referred to as 'selfish genes' or the ultimate parasites?

What type of genetic material do viruses contain?

Do viruses contain both DNA and RNA?

On what are viruses totally dependent for energy, intermediary metabolism, and protein synthesis?

What type of existence do viruses have?

What are the characteristics of viruses in terms of size and visibility?

What unconventional agents are considered viruses?

What is the innermost component of a virion?

What type of genetic code do viruses have?

What is the shape of the genetic code in viruses?

How many strands can viral genetic material have?

Can viruses be segmented or non-segmented?

What is the primary function of capsids in viruses?

What are capsids composed of?

What are capsomers composed of?

What is the structural unit of the capsid?

What is a capsomer in the context of viral structure?

What do simple capsids have in terms of subunit interactions?

How do more complex capsids interact in terms of subunit arrangement?

What types of symmetry can viral capsids exhibit?

What type of symmetry do tubular capsids have?

What are the components of icosahedral symmetry in viral capsids?

What is the structural arrangement of pentons in viral capsids?

What is the structural arrangement of hexons in viral capsids?

What is an icosahedron in the context of viral structure?

What rotational axes do icosahedral capsids have?

How are icosahedral capsids constructed?

What does the triangulation number (T) represent in viral capsids?

What is another name for the triangulation number in viral capsids?

How can the triangulation number (T) be determined?

How many capsid proteins does a T=4 icosahedral capsid have?

What type of viruses have asymmetrical structures?

What is the structure of complex viruses?

What are the functions of the viral capsid?

What is a nucleocapsid in viral structure?

What is the origin of the viral envelope?

What does the viral envelope contain?

What is the nomenclature suffix for a viral family?

What is the nomenclature suffix for a viral subfamily?

What is the nomenclature suffix for a viral genus?

What defines a viral species?

What is a quasispecies in the context of viruses?

What types of nucleic acids can viruses have?

What are the possible structures of viral nucleic acids?

What is RNA polarity in viruses?

What types of symmetry can viruses exhibit?

What is a key strategy for virus classification?

Do viruses differ widely in shape and size?

Is the Picornavirus small or large?

Is the Poxvirus small or large?

What experiment can determine if an infectious agent is a virus?

What did the development of the electron microscope in the 1930s allow scientists to do?

What is the first step in virus replication?

What is adsorption in the context of viral replication?

What do enveloped viruses use to recognize and attach to cells?

What do non-enveloped viruses use to recognize and attach to cells?

How do viruses attach to cell surfaces?

What is tropism in the context of viral infection?

What is the second step in virus replication?

What are the first two steps of viral entry?

How does a virus enter a host cell?

How do enveloped viruses typically enter host cells?

Can some non-enveloped viruses cross the plasma membrane directly?

What is uncoating in the context of viral replication?

What is the purpose of making the viral genome accessible?

When can uncoating occur during viral replication?

What do some non-enveloped viruses need to remove the capsid?

Where does uncoating happen in the host cell?

What must happen before the viral genome can be transcribed or replicated in a new host cell?

What is the third step in virus replication?

What are the steps involved in macromolecular synthesis during viral replication?

What determines how macromolecular synthesis occurs in viruses?

How do SS + RNA viruses function in the host cell?

How are SS + RNA viruses translated in the host cell?

What is the purpose of SS + RNA viruses in the host cell?

What do SS + RNA viruses synthesize in the host cell?

How do SS - RNA viruses produce mRNA transcripts?

How do SS - RNA transcripts differ in abundance?

What intermediate do SS - RNA viruses use during replication?

Can DS RNA viruses function directly as mRNA?

How do DS RNA viruses use the negative strand during replication?

How do DS RNA viruses produce unique mRNA?

How is the genome of DS RNA viruses replicated?

Where does SS DNA virus replication occur?

What does the viral DNA in SS DNA serve as a template for?

What is the genome shape of DS DNA viruses?

Where does DS DNA virus replication occur?

How are DS DNA viruses regulated?

How do viral proteins regulate the host cell cycle?

What do DS DNA mRNA transcripts contain?

How is DS DNA mRNA synthesized to reduce the amount of DNA needed?

Where do DS DNA Poxviruses replicate?

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Comprehensive Study of Viral Structure, Classification, and Replication

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