Question 1

Which of the following does not increase the risk for developing cancer?

Accepted Answer

A)  vigorous exercise
B)  poor diet
C)  mutated genes
D)  sun exposure
E)  tobaccoF) B) and D)
G) C) and E)

Question 2

Some risk of cancer comes from genetic issues.

Accepted Answer

A) True 
 B)False

Question 3

Apoptosis could explain the death of lines of cells in palm leaves that lead to separate "fingers" in the structure of those leaves.

Accepted Answer

A) True 
 B)False

Question 4

If a cancer metastasizes,its cells travel through the blood stream and colonize other areas of the body.

Accepted Answer

A) True 
 B)False

Question 5

Endostatin is a 184-amino acid protein that only affects endothelial cells for what reason?

Accepted Answer

A)  Endothelial cells produce endostatin.
B)  Endostatin can diffuse across the membrane of endothelial cells.
C)  Only endothelial cells are exposed to endostatin.
D)  Endothelial cells have a receptor on their cell membrane for endostatin.
E)  Endostatin enters endothelial cells by endocytosis.F) A) and B)
G) C) and D)

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

The division of the nucleus during the eukaryotic cell cycle is

Accepted Answer

A)  mitosis.
B)  interphase.
C)  synthesis.
D)  cytokinesis.
E)  replication.F) B) and D)
G) None of the above

Question 8

Apoptosis is also called

Accepted Answer

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

Question 9

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 micE.F) A) and E)
G) C) and D)

Question 10

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) A) and E)
G) C) and E)

Question 11

Bacteria and archaeans do not receive new genetic material from binary fission,but from mutations and gene transfers.

Accepted Answer

A) True 
 B)False

Question 12

If you were putting description on a model,you would put a card saying "a discrete continuous molecule of DNA wrapped around protein" on a model of a

Accepted Answer

A)  nucleosome.
B)  chromosome.
C)  centromere.
D)  histone.
E)  genomE.F) None of the above
G) A) and B)

Question 13

In a sexual life cycle,a zygote (fertilized egg) grows to an adult by

Accepted Answer

A)  meiosis.
B)  fertilization.
C)  meiosis and fertilization.
D)  mitosis.
E)  All answers are correct.F) A) and E)
G) C) and D)

Question 14

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

Accepted Answer

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

Question 15

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) A) and D)
G) None of the above

Question 16

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) B) and C)
G) C) and D)

Question 17

Sister chromatids are

Accepted Answer

A)  genetically identical and attached to each other at the centromere.
B)  genetically different and attached to each other at the centromere.
C)  genetically different.
D)  genetically identical.
E)  attached to each other at the centromerE.F) All of the above
G) B) and E)

Question 18

You would not be observing mitosis through a microscope if you were looking at activity designed for the

Accepted Answer

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

Question 19

Bypassing a checkpoint in the cell cycle may result in a cancer cell

Accepted Answer

A)  dividing after mutations are fixed.
B)  continuing to divide and replicate with faulty DNA.
C)  condensing its chromosomes before mitosis.
D)  aligning chromosomes on the equator of the cell during metaphase.
E)  pulling chromosomes apart during anaphasE.F) A) and B)
G) A) and E)

Question 20

In an asexual life cycle,cells reproduce by

Accepted Answer

A)  meiosis.
B)  fertilization.
C)  meiosis and fertilization.
D)  mitosis.
E)  All answers are correct.F) B) and C)
G) A) and E)

Exam 8: DNA Replication, binary Fission, and Mitosis

If a cancer metastasizes,its cells travel through the blood stream and colonize other areas of the body.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Bacteria and archaeans do not receive new genetic material from binary fission,but from mutations and gene transfers.

Correct AnswerverifiedShow Answer

Apoptosis is also called

Correct AnswerverifiedShow Answer

Some risk of cancer comes from genetic issues.

Correct AnswerverifiedShow Answer

Bypassing a checkpoint in the cell cycle may result in a cancer cell

Correct AnswerverifiedShow Answer

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

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

Which of the following does not increase the risk for developing cancer?

Correct AnswerverifiedShow Answer

Endostatin is a 184-amino acid protein that only affects endothelial cells for what reason?

Correct AnswerverifiedShow Answer

In a sexual life cycle,a zygote (fertilized egg) grows to an adult by

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Apoptosis could explain the death of lines of cells in palm leaves that lead to separate "fingers" in the structure of those leaves.

Correct AnswerverifiedShow Answer

You would not be observing mitosis through a microscope if you were looking at activity designed for the

Correct AnswerverifiedShow Answer

When DNA replicates

Correct AnswerverifiedShow Answer

If you were putting description on a model,you would put a card saying "a discrete continuous molecule of DNA wrapped around protein" on a model of a

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In an asexual life cycle,cells reproduce by

Correct AnswerverifiedShow Answer

The division of the nucleus during the eukaryotic cell cycle is

Correct AnswerverifiedShow Answer

Sister chromatids are

Correct AnswerverifiedShow Answer

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

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