Virology Final Exam Questions with Correct Answers
the Hershey-chase blender experiment demonstrated that only the
________ had to enter the bacteria to cause the production of a phage.
Correct Answer-DNA
which theory of the origin of viruses is least likely to be true Correct
Answer-Panspermia
LUCA stands for Correct Answer-Last universal common ancestor
what was the first disease against which a vaccine was developed?
Correct Answer-smallpox
which type of RNA polymerase synthesizes pre-messengerRNA?
Correct Answer-RNA poly II
Which of the following is not a part of all viruses? Correct Answer-
enevlope
Which of the following are not post-translational modifications? Correct
Answer-elongation
which of the following are not molecular constraints of the Eukaryotic
host cell Correct Answer-polycistronic RNA
,what word describes a virus that does not contain lipid bilayer Correct
Answer-naked
which of the following is not a post-translational modification of
Eukaryotic mRNA? Correct Answer-5' Acetylation
What codon signifies tranlational initiation? Correct Answer-AUG
Which of the following is true of ALL viruses? Correct Answer-Are
obligately inter cellular
what are the identical subunits of a capsid called? Correct Answer-
capsomeres
How were viruses first defined by Beijerinck, Ivanovsky, Loeffler, and
Frosch? Correct Answer-infections agents that passed through filters that
would retain bacteria
the enzyme that synthesizes DNA from an RNA template is Correct
Answer-reverse transcriptase
_______ can go straight to the ribosome upon entering the cell. Correct
Answer-+ssRNA
which of the following are not means of virus entry Correct Answer-
proofreading
, what enzyme is responsible for creating RNA genomes from a RNA
template? Correct Answer-RNA-dependent RNA poly
T/F: there are no viruses that can infect bacteria. Correct Answer-False
T/F: viruses an benefit or harm humankind. Correct Answer-True
T/F: Viruses can infect virtually every organism on earth. Correct
Answer-True
T/F: Some viral infections are linked to cancer. Correct Answer-True
T/F: Viral replication requires a number of host cell proteins. Correct
Answer-True
T/F: Viruses are being used as vehicles to deliver correct forms of gene
to the cells of humans who lack the functionality of those genes. Correct
Answer-True
T/F: viruses were first defined as infectious agents that could not pass
though filters. Correct Answer-False
T/F: Virus genomes can be composed of RNA and DNA, but not both.
Correct Answer-True
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