Question 1

Replication takes place during the G1 phase of interphase.

Accepted Answer

A) True 
 B)False

Question 2

A replicated chromosome consists of two sister chromatids.

Accepted Answer

A) True 
 B)False

Question 3

Strands of DNA are joined by

Accepted Answer

A)  hydrogen bonds.
B)  covalent bonds.
C)  ionic bonds.
D)  phosphodiester bonds.E) A) and B)
F) B) and C)

Question 4

The phase of mitosis in which the chromosomes are aligned along the equator of the cell is

Accepted Answer

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

Question 5

An abnormal mass of tissue is a tumor.

Accepted Answer

A) True 
 B)False

Question 6

The enzyme that unwinds DNA is

Accepted Answer

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

Question 7

The process by which DNA reproduces itself is

Accepted Answer

A)  protein synthesis.
B)  aerobic respiration.
C)  replication.
D)  substrate-phosphorylation.
E)  photosynthesis.F) A) and B)
G) A) and C)

Question 8

DNA and associated proteins in the nucleus defines the term

Accepted Answer

A)  centromere.
B)  nucleosome.
C)  histone.
D)  chromatin.
E)  chromosomE.F) A) and C)
G) A) and B)

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

Question 10

Why don't plant cells form a cleavage furrow during cytokinesis?

Accepted Answer

A)  because they don't have a cell membrane
B)  because their cells don't divide after mitosis,but become one larger cell with multiple nuclei
C)  because they have a cell wall
D)  because they don't have a nucleus
E)  All answers are correct.F) A) and D)
G) B) and D)

Question 11

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

Question 12

Eukaryotic chromosomes become visible with a light microscope before cell division because

Accepted Answer

A)  they become less tightly wound.
B)  they become more tightly wound.
C)  they increase in length.
D)  they leave the cell.
E)  they increase in length and leave the cell.F) B) and C)
G) C) and D)

Question 13

The division of the nucleus during the eukaryotic cell cycle is

Accepted Answer

A)  mitosis.
B)  interphase.
C)  synthesis.
D)  cytokinesis.
E)  replication.F) A) and C)
G) A) and E)

Question 14

During the cell cycle there are several checkpoints that ensure that the cell cycle is proceeding correctly.

Accepted Answer

A) True 
 B)False

Question 15

In the section "Investigating Life: Cutting Off a Tumor's Supply Lines in the War on Cancer",what is the dependent variable in the figure?

Accepted Answer

A)  volume of the tumor in humans
B)  treatment days
C)  treatment with endostatin
D)  treatment with standard chemotherapy drug
E)  the volume of the tumor in miceF) A) and B)
G) A) and C)

Question 16

The first sign of cytokinesis in a plant cell is the formation of a

Accepted Answer

A)  nuclear envelope.
B)  nucleolus.
C)  cleavage furrow.
D)  cell plate.
E)  spindle fiber.F) None of the above
G) B) and C)

Question 17

Meiosis is a process used for

Accepted Answer

A)  repair of damaged cells.
B)  growth of an organism.
C)  asexual reproduction.
D)  production of stem cells.
E)  production of gametes.F) A) and E)
G) D) and E)

Question 18

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) None of the above
G) All of the above

Question 19

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

Question 20

The plant cell in the image labeled "b" is in the cell cycle stage

Accepted Answer

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

Exam 8: DNA Replication and Cell Division

During the cell cycle there are several checkpoints that ensure that the cell cycle is proceeding correctly.

Correct AnswerverifiedShow Answer

The division of the nucleus during the eukaryotic cell cycle is

Correct AnswerverifiedShow Answer

The process by which DNA reproduces itself is

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

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

Correct AnswerverifiedShow Answer

The first sign of cytokinesis in a plant cell is the formation of a

Correct AnswerverifiedShow Answer

The correct sequence for the phases of mitosis is

Correct AnswerverifiedShow Answer

Eukaryotic chromosomes become visible with a light microscope before cell division because

Correct AnswerverifiedShow Answer

A replicated chromosome consists of two sister chromatids.

Correct AnswerverifiedShow Answer

An abnormal mass of tissue is a tumor.

Correct AnswerverifiedShow Answer

Strands of DNA are joined by

Correct AnswerverifiedShow Answer

The plant cell in the image labeled "b" is in the cell cycle stage

Correct AnswerverifiedShow Answer

Why don't plant cells form a cleavage furrow during cytokinesis?

Correct AnswerverifiedShow Answer

The enzyme that unwinds DNA is

Correct AnswerverifiedShow Answer

Replication takes place during the G1 phase of interphase.

Correct AnswerverifiedShow Answer

The plant cell in the image labeled "a" is in the cell cycle stage

Correct AnswerverifiedShow Answer

The phase of mitosis in which the chromosomes are aligned along the equator of the cell is

Correct AnswerverifiedShow Answer

DNA and associated proteins in the nucleus defines the term

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Cutting Off a Tumor's Supply Lines in the War on Cancer",what is the dependent variable in the figure?

Correct AnswerverifiedShow Answer

Meiosis is a process used for

Correct AnswerverifiedShow Answer

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