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1.
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How is the lytic cycle different from the lysogenic?
a. | the lytic cycle involves replication of viral DNA while the lysogenic cycle does
not | b. | the lytic cycle causes the rupture of the cell and release of virus particles while
the lysogenic involves incorporation of viral DNA into host DNA | c. | the lytic cycle
incorporation of viral DNA into host DNA while the lysogenic involves causes the rupture of the cell
and release of virus particles | d. | the lytic cycle affects bacteria only but the
lysogenic cycle can affect eukaryotes |
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2.
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What is a bacteriophage?
a. | pathogenic bacterium | c. | a prokaryotic cell that engulfs other
prokaryotes | b. | protist that consumes bacteria | d. | virus that infects
bacteria |
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3.
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Which of the following happens during the early stage of the lytic cycle?
Choose all that apply.
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4.
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A retrovirus is
a. | a virus from the 1970s. | b. | a virus that only uses the lysogenic cycle of
replication. | c. | a DNA virus that transcribes its genetic material into RNA. | d. | an RNA virus that
can “reverse transcribe” DNA. |
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5.
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A provirus is _____ and plays an imprtant role in the _____ cycle.
a. | viral genes incorporated into host DNA; lytic | b. | viral genes
incorporated into host DNA; lysogenic | c. | newly replicated viral particles (virons);
lytic | d. | newly replicated viral particles (virons); lysogenic |
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6.
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How does HIV prevent its host cell’s defense mechanism?
a. | it has a protein that binds to the termination complex, which allows the
transcription of the viral gene | b. | host terminator proteins bind to mRNA to block
translation | c. | it incorporates its DNA directly into the host cell’s chromosome before it can
be detected | d. | it contains slightly different types nucleotides that are not recognized by the host
cell |
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