Question 1

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) C) and D)
G) C) and E)

Question 2

Which is the cause of cervical cancer?

Accepted Answer

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

Question 3

The component of the cytoskeleton that attaches to the chromosomes to separate them during anaphase is the

Accepted Answer

A)  Golgi apparatus.
B)  centromere.
C)  centrosome.
D)  mitotic spindle.
E)  kinetochorE.F) C) and D)
G) B) and D)

Question 4

One of two identical attached copies of a replicated chromosome defines the term

Accepted Answer

A)  centromere.
B)  chromatin.
C)  chromosome.
D)  nucleosome.
E)  chromatid.F) All of the above
G) A) and C)

Question 5

To avoid serious genetic problems,when a cell is to divide,it must replicate

Accepted Answer

A)  cytoplasmic contents.
B)  cell membrane structure.
C)  array of enzymes.
D)  genome.
E)  cell wall.F) B) and D)
G) B) and C) D

Question 6

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) B) and E)

Question 7

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

Accepted Answer

A)  interphase.
B)  prophase.
C)  ligase.
D)  helicase.
E)  DNA polymerasE.F) C) and D)
G) D) and E)

Question 8

The enzyme that unwinds DNA is

Accepted Answer

A)  helicase.
B)  interphase.
C)  DNA polymerase.
D)  prophase.
E)  ligasE.F) A) and B)
G) D) and E)

Question 9

The correct sequence for the phases of mitosis is

Accepted Answer

A)  interphase-prophase-metaphase-anaphase-telophase-cytokinesis.
B)  interphase-prophase-metaphase-anaphase-telophase.
C)  metaphase-anaphase-prophase-telophase.
D)  prophase-metaphase-cytokinesis-anaphase-telophase.
E)  prophase-metaphase-anaphase-telophasE.F) A) and C)
G) None of the above

Question 10

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) B) and D)
G) D) and E) A

Question 11

The phase of mitosis in which the chromosomes condense and centrosomes move to opposite poles of the cell is

Accepted Answer

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

Question 12

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) B) and D)
G) D) and E)

Question 13

In the section "Investigating Life: Cutting Off a Tumor's Supply Lines in the War on Cancer," what did the researchers conclude from part a.of the figure?

Accepted Answer

A)  Endostatin shrank tumors but resistance developed.
B)  The standard chemotherapy drug delayed the growth of tumors without development of resistance.
C)  Endostatin shrank tumors without development of resistance.
D)  The standard chemotherapy drug delayed the growth of tumors but resistance developeD.
E)  Tumors in untreated cells shrank in sizE.F) A) and E)
G) C) and D)

Question 14

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) B) and E)
G) All of the above

Question 15

If you wanted to avoid lung cancer,what would be the best factor to avoid?

Accepted Answer

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

Question 16

Semiconservative DNA replication comes from the basepairing that is part of the basic structure of the DNA double helix.

Accepted Answer

A) True 
 B)False

Question 17

Each newly replicated molecule of DNA contains one conserved strand from the original DNA molecule.

Accepted Answer

A) True 
 B)False

Question 18

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) A) and B)
G) B) and C)

Question 19

Exposure to UV radiation from the sun can increase the risk of caner.

Accepted Answer

A) True 
 B)False

Question 20

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 E)
G) A) and B) C

Exam 8: DNA Replication, binary Fission, and Mitosis

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

Correct AnswerverifiedShow Answer

Which is the cause of cervical cancer?

Correct AnswerverifiedShow Answer

The component of the cytoskeleton that attaches to the chromosomes to separate them during anaphase is the

Correct AnswerverifiedShow Answer

One of two identical attached copies of a replicated chromosome defines the term

Correct AnswerverifiedShow Answer

To avoid serious genetic problems,when a cell is to divide,it must replicate

Correct AnswerverifiedD

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

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

Correct AnswerverifiedShow Answer

The enzyme that unwinds DNA is

Correct AnswerverifiedShow Answer

The correct sequence for the phases of mitosis is

Correct AnswerverifiedShow Answer

Apoptosis could be used to protect an organism against

Correct AnswerverifiedA

The phase of mitosis in which the chromosomes condense and centrosomes move to opposite poles of the cell is

Correct AnswerverifiedShow Answer

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

In the section "Investigating Life: Cutting Off a Tumor's Supply Lines in the War on Cancer," what did the researchers conclude from part a.of the figure?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

If you wanted to avoid lung cancer,what would be the best factor to avoid?

Correct AnswerverifiedShow Answer

Semiconservative DNA replication comes from the basepairing that is part of the basic structure of the DNA double helix.

Correct AnswerverifiedShow Answer

Each newly replicated molecule of DNA contains one conserved strand from the original DNA molecule.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Exposure to UV radiation from the sun can increase the risk of caner.

Correct AnswerverifiedShow Answer

How does the space between our fingers arise?

Correct AnswerverifiedC

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D

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A

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C