Question 1

Nucleosomes are located in the

Accepted Answer

A)  nucleus attached to the ends of DNA strands.
B)  nucleus and are composed of DNA and histones.
C)  nucleus and are associated with the nuclear membrane.
D)  nucleus and are composed of mRNA and histones.
E)  nucleus and are associated with the nucleolus and aid in ribosome synthesis.F) None of the above
G) A) and D)

Question 2

Which timepoint represents G2 phase? 2 phase?   A) 1 B) 2 C) 3 D) 4" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  1
B)  2
C)  3
D)  4E) A) and D)
F) B) and C)

Question 3

The bacterial genome exist as a

Accepted Answer

A)  single,circular,protein-coated,double stranded DNA molecule.
B)  single,circular,uncoated,double stranded DNA molecule.
C)  single,circular,uncoated,double stranded RNA molecule.
D)  single,linear,uncoated,double stranded DNA molecule.
E)  many,circular,uncoated,double stranded DNA molecules.F) A) and E)
G) A) and C)

Question 4

The chromosomes line up at the equator of the spindle during

Accepted Answer

A)  anaphase.
B)  interphase.
C)  metaphase.
D)  prophase.
E)  telophasE.F) B) and C)
G) A) and E)

Question 5

Normally,_____ functions in the cell to stop cell division if the cell has experienced extensive DNA damage.

Accepted Answer

A)  heat
B)  p53
C)  FtsZ
D)  DNAE) C) and D)
F) A) and B)

Question 6

Nuclear division in eukaryotic cells is called

Accepted Answer

A)  meiosis.
B)  mitosis.
C)  binary fission.
D)  cytokinesis.E) None of the above
F) B) and C)

Question 7

Cytoplasmic organelles are partitioned between two daughter cells.

Accepted Answer

A)  G1
B)  S
C)  G2
D)  M
E)  CF) B) and C)
G) A) and D)

Question 8

The physical distribution of cytoplasmic material into the two daughter cells is called

Accepted Answer

A)  DNA replication.
B)  mitosis.
C)  cytokinesis.
D)  binary fission.E) All of the above
F) B) and D)

Question 9

Which one of the following represents interphase?

Accepted Answer

A)  G1 + G2 + S
B)  S + M + C
C)  prophase + metaphase + anaphase + telophase
D)  cytokinesis + mitosis
E)  G0 + G1 + G2F) A) and B)
G) A) and E) A

Question 10

Duplicate copy of the hereditary information is made.

Accepted Answer

A)  G1
B)  S
C)  G2
D)  M
E)  CF) A) and C)
G) B) and E)

Question 11

During which phase of the cell cycle are mitochondria and chloroplasts distributed equally among daughter cells?

Accepted Answer

A)  G2
B)  M
C)  C
D)  There is no mechanism to distribute mitochondria and chloroplasts equally among daughter cells.E) A) and D)
F) All of the above

Question 12

What would you expect to happen if the anaphase-promoting complex (APC) failed to ubiquitinate securin?

Accepted Answer

A)  The cohesin complex will be destroyed,and the cell will remain in metaphase.
B)  The cohesin complex will persist,preventing the cell from entering anaphase.
C)  Separase will be marked for degradation by securin,preventing the cell from entering anaphase.
D)  Inhibition of separase will be lifted,allowing securin to destroy cohesin and preventing the cell from entering anaphase.E) A) and B)
F) A) and C) B

Question 13

Which of the following is essentially the reverse of prophase?

Accepted Answer

A)  anaphase
B)  interphase
C)  metaphase
D)  telophase
E)  cytokinesisF) A) and C)
G) C) and E)

Question 14

You are studying cell cycle progression in an early frog embryo.If you were to inject a protein synthesis inhibitor into a cell at the end of S phase,the cell would

Accepted Answer

A)  arrest in G1.
B)  arrest in G2.
C)  arrest in S.
D)  arrest in M.E) C) and D)
F) B) and D)

Question 15

The physical map of the array of chromosomes is called a(n)

Accepted Answer

A)  ecotype.
B)  haplotype.
C)  karyotype.
D)  phenotype.
E)  genotypE.F) C) and D)
G) A) and E) C

Question 16

Recent studies on cell cycle controls have revealed that animal cells can employ certain factors to override the inhibitory controls of cell division.These belong to a class of proteins called

Accepted Answer

A)  histones.
B)  channel proteins.
C)  growth factors.
D)  gating proteins.
E)  neurotransmitters.F) All of the above
G) A) and B)

Question 17

__________ is the stage of mitosis characterized by the alignment of the chromosomes in a ring along the inner circumference of the cell.

Accepted Answer

A)  Interphase
B)  Telophase
C)  Prophase
D)  MetaphaseE) All of the above
F) B) and C)

Question 18

A cell biologist is conducting a karyotype procedure on alligator red blood cells.Exactly what does this mean?

Accepted Answer

A)  It means that red blood cells from the alligator will be examined with a microscope and the nuclei will be counted.
B)  It means that red blood cells from the alligator will be examined using restriction enzymes to count the number of centromeres that are present on the chromosomes.
C)  It means that chromosomes from the red blood cells of the alligator will be examined with a microscope,photographed,counted,lined up with their respective homologous partner,and displayed.
D)  It means that chromosomes from the red blood cells of the alligator will be examined with a microscope to determine the amount of hemoglobin present.E) A) and C)
F) A) and B)

Question 19

The accommodation of the very long DNA fiber into a limited space of the nucleus is achieved by coiling around beads of histones into repeating subunits.These subunits of chromosomes are given the name __________.

Accepted Answer

A)  DNA
B)  nucleosomes
C)  RNA
D)  coiling proteinsE) A) and B)
F) C) and D)

Question 20

While dissecting a cat in anatomy class,you tease out some muscle tissue,stain it,and look at it under a light microscope.What percentage of the muscle cells would you expect to be in M phase at any given time?

Accepted Answer

A)  0%
B)  25%
C)  50%
D)  100%E) All of the above
F) None of the above

Exam 10: How Cells Divide

Nucleosomes are located in the

Correct AnswerverifiedShow Answer

Which timepoint represents G2 phase?

Correct AnswerverifiedShow Answer

The bacterial genome exist as a

Correct AnswerverifiedShow Answer

The chromosomes line up at the equator of the spindle during

Correct AnswerverifiedShow Answer

Normally,_____ functions in the cell to stop cell division if the cell has experienced extensive DNA damage.

Correct AnswerverifiedShow Answer

Nuclear division in eukaryotic cells is called

Correct AnswerverifiedShow Answer

Cytoplasmic organelles are partitioned between two daughter cells.

Correct AnswerverifiedShow Answer

The physical distribution of cytoplasmic material into the two daughter cells is called

Correct AnswerverifiedShow Answer

Which one of the following represents interphase?

Correct AnswerverifiedA

Duplicate copy of the hereditary information is made.

Correct AnswerverifiedShow Answer

During which phase of the cell cycle are mitochondria and chloroplasts distributed equally among daughter cells?

Correct AnswerverifiedShow Answer

What would you expect to happen if the anaphase-promoting complex (APC) failed to ubiquitinate securin?

Correct AnswerverifiedB

Which of the following is essentially the reverse of prophase?

Correct AnswerverifiedShow Answer

You are studying cell cycle progression in an early frog embryo.If you were to inject a protein synthesis inhibitor into a cell at the end of S phase,the cell would

Correct AnswerverifiedShow Answer

The physical map of the array of chromosomes is called a(n)

Correct AnswerverifiedC

Recent studies on cell cycle controls have revealed that animal cells can employ certain factors to override the inhibitory controls of cell division.These belong to a class of proteins called

Correct AnswerverifiedShow Answer

__________ is the stage of mitosis characterized by the alignment of the chromosomes in a ring along the inner circumference of the cell.

Correct AnswerverifiedShow Answer

A cell biologist is conducting a karyotype procedure on alligator red blood cells.Exactly what does this mean?

Correct AnswerverifiedShow Answer

The accommodation of the very long DNA fiber into a limited space of the nucleus is achieved by coiling around beads of histones into repeating subunits.These subunits of chromosomes are given the name __________.

Correct AnswerverifiedShow Answer

While dissecting a cat in anatomy class,you tease out some muscle tissue,stain it,and look at it under a light microscope.What percentage of the muscle cells would you expect to be in M phase at any given time?

Correct AnswerverifiedShow Answer

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Which timepoint represents G₂ phase?

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A

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B

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C

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