Exam 6: An Introduction to the Viruses

Prophages can be activated into viral replication and enter the lytic cycle.

The event that occurs in bacteriophage multiplication that does not occur in animal virus replication is

During lysogeny,an inactive prophage state occurs when the viral DNA is inserted into the host ______.

Viral capsids are made from subunits called ______.

Viral tissue specificities are called ______.

Viruses that cause infection resulting in alternating periods of activity with symptoms and inactivity without symptoms are called ______.

One of the principal viral capsid shapes is a 20-sided figure with 12 evenly spaced corners referred to as a/an _____ capsid.

A negative RNA virus must first

Freshly isolated animal tissue that is placed in a growth medium and allowed to produce a cell monolayer is referred to as a/n _____ cell culture.

A treatment for bacterial infections from the early 20th century has made a comeback; the use of bacterial viruses to eliminate bacterial infections.Which explanation most accurately describes the reason for the return of this treatment?

Successful anti-HIV drug therapies today work by blocking the action of viral reverse transcriptase.Select which step of virus multiplication that would be directly blocked by this mechanism.

The activation of a prophage is called ______.

Infectious naked strands of RNA that affect plants are called ______.

Viruses are the most common cause of acute infections that do not result in hospitalization.

Host cells of viruses include ______.

Viruses acquire envelopes around their nucleocapsids during ______.

Spikes are glycoproteins that can be found projecting from the viral capsid.

Lysogeny refers to

How are viroids transmitted?

Persistent viruses that can reactivate periodically are ______.