Question 1

A discrete package of DNA and associated proteins in eukaryotes is a

Accepted Answer

A)   chromosome.
B)   nucleus.
C)   ribosome.
D)   Golgi body.
E)   centriole.F) None of the above
G) A) and B)

Question 2

Which is a common cause of cervical cancer?

Accepted Answer

A)   human papillomavirus
B)   UV radiation
C)   dietary saturated fat
D)   tobacco use
E)   All answers are correct.F) A) and B)
G) A) and C)

Question 3

If you wanted to lower your chances of lung cancer,what would be the best factor to avoid?

Accepted Answer

A)   human papillomavirus
B)   UV radiation
C)   dietary saturated fat
D)   tobacco use
E)   All answers are correct.F) D) and E)
G) A) and D)

Question 4

Apoptosis is also called

Accepted Answer

A)   replication.
B)   mitosis.
C)   programmed cell death.
D)   the cell cycle.
E)   programmed cellular reproduction.F) D) and E)
G) A) and E)

Question 5

When DNA replicates

Accepted Answer

A)   the original DNA is not affected and a new double-stranded DNA is made from two new strands of DNA.
B)   one strand of the original DNA ends up in each of the new DNA molecules.
C)   the original DNA unwinds, and multiple copies of a region are transcribed before the DNA closes back up.
D)   transcription factors determine where to begin DNA replication.
E)   a cell that was diploid (2N)  will now be tetraploid (4N) .F) B) and C)
G) A) and B)

Question 6

In early stages of mitosis,a structure appears and functions to organize the protein subunits of the mitotic spindle.This is the

Accepted Answer

A)   centromere.
B)   kinetochore.
C)   centrosome.
D)   cytoskeleton.
E)   microfilaments.F) A) and B)
G) C) and D)

Question 7

Apoptosis could be used to protect an organism against

Accepted Answer

A)   excessive DNA damage.
B)   excess fat in the diet.
C)   allergens.
D)   a family history of cancer.
E)   No answer is correct.F) A) and E)
G) A) and D)

Question 8

A part of a chromosome that attaches sister chromatids to each other defines the term

Accepted Answer

A)   chromatin.
B)   nucleosome.
C)   centromere.
D)   histone.
E)   No answer is correct.F) A) and E)
G) B) and C)

Question 9

Binary fission produces ________ cells,mitosis produces ________ cells,and meiosis produces ________ cells.

Accepted Answer

A)   prokaryotic; eukaryotic body; eukaryotic sex
B)   genetic; body; sex
C)   eukaryotic; prokaryotic body; prokaryotic sex
D)   genetically different; genetically identical; genetically different
E)   genetically identical; genetically different; genetically identicalF) A) and B)
G) B) and D)

Question 10

Accessibility: Keyboard Navigation
  
   
           
-The plant cell in the image labeled "D" is in the cell cycle stage

Accepted Answer

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

Question 11

During cytokinesis of a plant cell,the cell divides by forming a cleavage furrow.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is correct about both binary fission and meiosis?

Accepted Answer

A)   Both result in genetically identical cells.
B)   Both result in one daughter cell.
C)   Both are asexual forms of cell reproduction.
D)   Both replicate the DNA before the cell splits.
E)   All answers are correct.F) B) and D)
G) A) and C)

Question 13

The first sign of cytokinesis in an animal cell is the formation of a

Accepted Answer

A)   cell plate.
B)   cleavage furrow.
C)   cell wall.
D)   nucleolus.
E)   nuclear envelope.F) A) and B)
G) A) and C)

Question 14

Mutations may be caused by

Accepted Answer

A)   errors in prokaryotic replication.
B)   exposure to radiation.
C)   exposure to chemicals.
D)   errors in eukaryotic replication.
E)   All answers are correct.F) C) and D)
G) A) and B)

Question 15

The chemotherapy drug taxol inhibits microtubule function.A cell treated with taxol would become stuck in which phase?

Accepted Answer

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

Question 16

How does the space between our fingers arise?

Accepted Answer

A)   The cells form by apoptosis.
B)   Mitosis of the cells is blocked.
C)   The cells die by apoptosis.
D)   Meiosis of the cells is blocked.
E)   The cells become part of the fingers.F) A) and C)
G) B) and E)

Question 17

You are told that you will receive an automatic "A" in your course if you look in a drawer marked with a part of the cell cycle most clearly associated with DNA replication and find a special token.Therefore you look in a drawer containing items related to

Accepted Answer

A)   mitosis.
B)   cytokinesis.
C)   prophase.
D)   telophase.
E)   interphase.F) A) and B)
G) A) and C)

Question 18

The enzyme that adds nucleotides to form new strands of DNA is

Accepted Answer

A)   amylase.
B)   transcriptase.
C)   ligase.
D)   helicase.
E)   DNA polymerase.F) A) and C)
G) B) and E)

Question 19

Accessibility: Keyboard Navigation
  
   
           
-The plant cell in the image labeled "A" is in the cell cycle stage

Accepted Answer

A)   interphase.
B)   prophase.
C)   anaphase.
D)   telophase.
E)   metaphase.F) All of the above
G) C) and D)

Question 20

The process by which a sperm cell combines with an egg cell is

Accepted Answer

A)   fertilization.
B)   recombination.
C)   replication.
D)   mitosis.
E)   germination.F) A) and E)
G) All of the above

Exam 8: DNA Replication,Binary Fission,and Mitosis

In early stages of mitosis,a structure appears and functions to organize the protein subunits of the mitotic spindle.This is the

Correct AnswerverifiedShow Answer

How does the space between our fingers arise?

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When DNA replicates

Correct AnswerverifiedShow Answer

You are told that you will receive an automatic "A" in your course if you look in a drawer marked with a part of the cell cycle most clearly associated with DNA replication and find a special token.Therefore you look in a drawer containing items related to

Correct AnswerverifiedShow Answer

A discrete package of DNA and associated proteins in eukaryotes is a

Correct AnswerverifiedShow Answer

If you wanted to lower your chances of lung cancer,what would be the best factor to avoid?

Correct AnswerverifiedShow Answer

Which is a common cause of cervical cancer?

Correct AnswerverifiedShow Answer

The chemotherapy drug taxol inhibits microtubule function.A cell treated with taxol would become stuck in which phase?

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Which of the following is correct about both binary fission and meiosis?

Correct AnswerverifiedShow Answer

Apoptosis is also called

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A part of a chromosome that attaches sister chromatids to each other defines the term

Correct AnswerverifiedShow Answer

During cytokinesis of a plant cell,the cell divides by forming a cleavage furrow.

Correct AnswerverifiedShow Answer

The first sign of cytokinesis in an animal cell is the formation of a

Correct AnswerverifiedShow Answer

The process by which a sperm cell combines with an egg cell is

Correct AnswerverifiedShow Answer

The enzyme that adds nucleotides to form new strands of DNA is

Correct AnswerverifiedShow Answer

Accessibility: Keyboard Navigation -The plant cell in the image labeled "A" is in the cell cycle stage

Correct AnswerverifiedShow Answer

Binary fission produces ________ cells,mitosis produces ________ cells,and meiosis produces ________ cells.

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Mutations may be caused by

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Apoptosis could be used to protect an organism against

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Accessibility: Keyboard Navigation -The plant cell in the image labeled "D" is in the cell cycle stage

Correct AnswerverifiedShow Answer

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Binary fission produces cells,mitosis produces cells,and meiosis produces cells.

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