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A human cell in G0 is likely to be doing which of the following?Choose all that apply.
a. Transcription
b. Glycolysis
c. Cell-cell communication
d. DNA replication
e. Cytokinesis
f. Sister chromatid separation - CORRECT ANSWER: a. Transcription
b. Glycolysis
c. Cell-cell communication
A virus infects a cell, and when it introduces its genetic material into the host cell, DNA
replication machinery from the host immediately proceeds to replicate the viral genome.
Which of these statements about this virus could you make with reasonable certainty
based solely on the information given? Choose all that apply.
A. This virus has a DNA genome.
B. This virus is infecting a eukaryotic cell.
C. This virus had to package its own replicase in its capsid.
D. This virus uses reverse transcriptase.
E. This virus has a segmented genome. - CORRECT ANSWER: A. This virus has a
DNA genome.
, If DNA replication machinery is able to work on the viral genome, the viral genome had
to be DNA and not RNA. If replication begins immediately, the DNA replication
machinery was in the cytoplasm, so the host cannot be a eukaryote. If it's a DNA virus, it
does not need either replicase or reverse transcriptase. And not enough information is
available to say whether the viral genome is intact or segmented.
All template-directed nucleic acid synthesis creates new molecules that are
__________ to the template molecule.
a. antiparallel
b. complementary
c. identical
d. fully hybridized - CORRECT ANSWER: a. antiparallel
b. complementary
Dynein motor proteins play a role in which of the following? Choose all that apply.
A. Cytokinesis
B. Anaphase B
C. Prometaphase
D. Organelle positioning
E. Sperm cell motility - CORRECT ANSWER: B. Anaphase B
C. Prometaphase
D. Organelle positioning
E. Sperm cell motility
Dyneins are used in all of these functions other than cytokinesis. They provide for
movement of an axoneme, position organelles in interphase, and move sister
chromatids and spindle poles during M-phase. Cytokinesis is accomplished with actin
and myosin, not microtubules and dynein.