Viruses flashcards

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what is the protein shell that surrounds the genome of a virus particle in a highly repetitive pattern called? capsid
what is a bacteriophage? it is a virus that infects prokaryotic cells
what is a capsomere? it is the subunit of a capsid
what is lysogen? it is a bacterium containing a prophage
what is lysogeny? it is a state in which a viral genome is replicated as a prophage along with the genome of the host
what is the lytic pathway? a series of steps after virus infection that leads to virus replication and destruction of the host cell
why are viruses not considered cells? Viruses are not considered cells because they do not have a protoplasm
when does viruses replicate? Viruses replicate and divide once they are inside the host cell
Viruses require __________ for growth Living cells
what is the function of Reverse transcriptase enzyme? Reverse transcriptase is used when an RNA virus converts its RNA to DNA
what is the first step in infection of a host bacterial cell by a phage? Adsorption
what is lysogeny? This is when a virus enters a cell and does not replicate immediately
The capsomeres consist of a number of proteins subunits or molecules called? protomers
A change from lysogeny to lysis is generally induced by? Ultraviolet light
which two structures make up the viral nucleocapsid? genome and capsid make up the viral nuclocapsid
Enveloped viruses have a __________ shape roughly spherical
The process by which the viral DNA is removed from the host's chromosomes and the lytic cycle occurs is called? spontaneous induction
The size of viruses is usually measured in? nanometers
what is an example of a disinfectant against viruses? Hydrogen peroxide, Hypochlorite, Formaldehyde
what is a DNA virus? A DNA virus is a virus in which the genetic material is DNA instead of RNA.
what is a RNA virus? it is a virus that has it's genetic material stored in an RNA form

what is the protein shell that surrounds the genome of a virus particle in a highly repetitive pattern called?

what is a bacteriophage?

what is a capsomere?

what is lysogen?

what is lysogeny?

what is the lytic pathway?

why are viruses not considered cells?

when does viruses replicate?

Viruses require __________ for growth

what is the function of Reverse transcriptase enzyme?

what is the first step in infection of a host bacterial cell by a phage?

what is lysogeny?

The capsomeres consist of a number of proteins subunits or molecules called?

A change from lysogeny to lysis is generally induced by?

which two structures make up the viral nucleocapsid?

Enveloped viruses have a __________ shape

The process by which the viral DNA is removed from the host's chromosomes and the lytic cycle occurs is called?

The size of viruses is usually measured in?

what is an example of a disinfectant against viruses?

what is a DNA virus?

what is a RNA virus?

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