Ch. 6 Viruses

Viruses have the following except
Host cells of viruses include
All of the choices are correct
The core of every virus particle always contains
Either DNA or RNA
Which of the following represents a virus family
Viruses capsids are made from subunits called
Which of the following is incorrect bout viruses
they cannot be seen with a light microscope
Which of the following is not associated with every virus
These structures are used by bacteriophages to attatch to host cell receptors
tail fibers
Which is incorrect about prophages?
cause lysis of host cells
The event that occurs in bacteriopage multiplication that does not occur in animal virus replication is
injection of the viral nucleic acid into the host cell
Viruses acquire envelopes around their nucleocapsids during
Which of the following will not support viral cultivation
blood agar
In general, DNA viruses multiply in the host cell's ____ while most RNA viruses multiply in the host cell's _______
nucleus, cytoplasm
Host range is limited by
size of host cell
The virus induced, specific damage to the host cell that can be seen in a light microscope is called
cytopathic effects
Viruses that cause infection resulting in alternating periods of activity with symptoms and inactivity without symptoms are called
Which of the followin is a type of cytopathic effect
All of the choices are correctq
Infectious protein particles are called
Infectious naked strands of RNA are called
All of the following is correct about treating viral diseases except
Viruses are killed by the same antibiotics that kill bacteria
The capsomers are made of
Viruses that consists of only a nucleocapsid are considered
naked viruses
Which of the following parts of a virus is not always present
None of the choices are optional parts of a virus
Viruses belong to which of the following kingdoms
When a virus enters lysogenic phase it means
the virus is integrated into the DNA of the host cell and is latent