Viruses in Eukaryotes
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Which
of the following is the agent associated with the development of
neurodegenerative disease in livestock and humans?
a. Viroids
b. Prions
c. Virinos
d. virions
___________
is probably the most important characteristic for classification of viruses in
eukaryotes.
a. Morphology
b. Chemical
nature of virion constituents
c. Host preference
d. Physical
nature of virion constituents
The
__________ of the influenza-enveloped virus appear to be involved in attachment
to the host cell receptor site.
a. hemagluttinin
b. fimbriae
c. neuraminidase
d. flagellae
Intracellular
structures formed during many viral infections, called __________, which can
directly disrupt cell structure.
a. prokaryotes
b. inclusion bodies
c. cytocidal
bodies
d. chromosomal
disruptions
Viral
RNA is replicated in the host cell _____________.
a. lysozomes
b. nucleus
c. cytoplasmic matrix
d. mitochondria
Which
family has received most interest in their development as a biological control
agent against insects?
a. Poxviridae
b. Reoviridae
c. Iridoviridae
d. Baculoviridae
In
cancer, the reversion of cells to a more primitive or less differentiated state
is called _____________.
a. metastasis
b. oncogenic
c. anaplasia
d. neoplasia
Which
of the following has been linked to Kaposi's sarcoma?
a. Human herpes virus 8
b. Human
papilloma virus
c. Epstein-Barr
virus
d. Human
T-cell lymphotropic virus
Virulent
and nonvirulent viruses may not _____________.
a. inhibit
host cell RNA synthesis
b. inhibit
host cell DNA synthesis
c. degrade host cell DNA
d. stimulate
host cell macromolecule synthesis
The
hepadnaviruses such as hepatitis B virus are quite different from other DNA
viruses with respect to genome replication. These replicate their DNA using
_____________.
a. reverse transcriptase
b. DNA-dependent
DNA polymerase
c. DNA
ligase
d. Rnase
H
Which
of the following virus is always detectable after infections?
a. Herpes
simplex virus
b. Hepatitis B virus
c. Cytomegalovirus
d. Varicella-zoster
virus
Viroids
are composed of _____________.
a. double-stranded
RNA
b. double-stranded
DNA
c. single-stranded
DNA
d. single-stranded RNA