1. W hich of the following statements is FALSE?
A) Errors in chromosome separation are rarely a problem for an organism.
B) Errors in chromosome separation can result in a miscarriage.
C) Errors in chromosome separation can result in cancer.
D) Errors in chromosome separation can result in a child with severe handicaps.
) Errors in chromosome separation can cause numerous problems for an organism.
2. hich of the following are NOT prokaryotes?
A) eubacteria
B) archaea
C) viruses
D) ancient bacteria
3. hich of the following statements is TRUE?
A) Eubacteria are prokaryotes while the archaea are eukaryotes.
B) Archaea are more closely related to eukaryotes than to eubacteria.
C) Eukaryotes are more closely related to eubacteria than to archaea.
D) Viruses are more closely related to prokaryotes than to eukaryotes.
) Eubacteria, archaea, and eukaryotes are all equally related.
4. hich of the following statements is FALSE?
A) Generally, chromosomes of prokaryotes are circular.
B) Prokaryotes usually have a single molecule of DNA.
C) Generally, chromosomes of eukaryotes are circular.
D) Eukaryotes usually have multiple chromosomes.
) Eukaryote chromosomes are usually linear.
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, 5. In eukaryotes, chromosomes do NOT contain:
A) ribosomes.
B) chromatin.
C) proteins.
D) histones.
) DNA.
6. Why are viruses considered to be neither prokaryotic nor eukaryotic?
7. Prokaryotic chromosomes do NOT have telomeres because they:
A) do not go through mitosis.
B) do not go through DNA replication.
C) are in the cytoplasm.
D) are circular.
) have no centromeres.
8. In prokaryotes, replication usually begins at a specific place on the chromosome called
the:
A) binary fission site.
B) origin of replication.
C) origin of mitosis.
D) anchoring site.
E) kinetochore.
9. The highly organized internal scaffolding of the nucleus is called the:
A) histone complex.
B) spindle microtubules.
C) nuclear cohesion.
D) nuclear matrix.
) nuclear envelope.
10. The attachment point on the chromosome for spindle microtubules is the:
A) telomere.
B) centromere.
C) origin of replication.
D) sister chromatid.
) allele.
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, 11. The process of splitting the cytoplasm, which separates one cell into two, is termed:
A) cytokinesis.
B) mitosis. C)
anaphase. D)
diakinesis.
) fusion.
12. In order to be functional, a eukaryotic chromosome requires all of the following
XCEPT:
A) a centromere.
B) origins of replication.
C) a plasmid.
D) telomeres.
13. Diploid cells are cells with chromosomes.
A) a single set of
B) circular
C) two sets of
D) many sets of
) three sets of
14. If a healthy cell passes the G1/S checkpoint:
A) it will enter the G0 stage of the cell cycle.
B) DNA will be replicated.
C) it will not divide.
D) it will proceed immediately to cytokinesis.
) it will die.
15. hich of the following does NOT occur during the G2 phase of the cell cycle?
A) The G2/M checkpoint is reached.
B) DNA replication and error checking are completed.
C) The cell completes preparation for mitosis.
D) The cell divides.
) All of these occur during the G2 phase of the cell cycle.
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