Exam 21: Viral Diversity

The function of T7 RNA polymerase is to transcribe T7's genome and does not directly interact with any of the host's genome.

Burkitt's lymphoma, a disease common among children in Central Africa and New Guinea, is caused by the tumorigenic virus_______ .

Fever blisters, chickenpox, shingles, and infectious mononucleosis are all caused by_______, which contain ________ - stranded _______genomes.

Explain why the viral genome of the MS2 phage can be immediately translated.

When 0X174 infects a cell, entrance of the virion into cells is accompanied by the conversion of_______ .

Of the double- stranded RNA viruses, 06 seems to be very closely related to the reoviruses that infect the

The scientist who demonstrated that the causative agent of tobacco mosaic disease could pass through filters was ________ .

Herpesviruses can remain latent in humans for several decades without causing disease by residing in the liver.

Reoviruses contain _______genomes, and their replication occurs within the host's_______ .

The hepadnavirus DNA polymerase acts as which of the following?

A spindle- shaped virus that infects the archaeon Acidianus convivator, called ACV, is morphologically distinct from most other viruses by containing_______ on its surface.

In _______viruses the virus RNA is not the mRNA, but it is copied into mRNA by an enzyme present in the virion.

To cause infection, the virion Paramecium bursaria Chlorella virus 1 (PBCV- 1) must first bind to what component of the host?

The Chlorella viruses are the only source of restriction enzymes other than the prokaryotes and a few bacteriophages.

All bacterial RNA viruses are icosahedral.

The phage Mu

The herpesvirus acquires its envelope via_______ through the _______of the nucleus.

Plant RNA viruses have specialized mechanisms to break open the thick cell walls and invade plants.

Viruses are known to infect Bacteria, but no virus has yet been found that infects Archaea.

The two proteins on the influenza virus surface are known as_______ and_______ .