Question 1

Where do cancer cells differ in their cell cycle from normal cells?

Accepted Answer

Cancer cells seldom pause at t...

Question 2

Which of the following help(s) to prevent cancer?

Accepted Answer

A)   cell cycle checkpoints
B)   apoptosis
C)   DNA repair enzymes
D)   regulation of the cell cycle
E)   All of the above.F) D) and E)
G) B) and C)

Question 3

Cancer may be caused by

Accepted Answer

A)   a cell cycle checkpoint problem.
B)   failure in apoptosis.
C)   unregulated cell division.
D)   failure in DNA repair mechanisms.
E)   All of the above.F) C) and E)
G) A) and B)

Question 4

Why would a chromosome decondense following mitosis?

Accepted Answer

Chromosomes decondense to allo...

Question 5

Our skin is our outermost layer,and it is exposed to all the hazards of the external environment.Thus,our skin cells are damaged on a regular basis and die.How does our body handle this frequent cell death?

Accepted Answer

Our skin cells are replaced as...

Question 6

Sister chromatids are

Accepted Answer

A)   duplicated chromosomes.
B)   identical copies.
C)   separated during mitosis.
D)   made during the S phase.
E)   All of the above.F) A) and B)
G) A) and C)

Question 7

If the cell does not ____________ during S phase,daughter cells may be missing some or have too many copies of certain genes.

Accepted Answer

accurately...

Question 8

In drawings of chromosomes,the "X" shape indicates that

Accepted Answer

A)   the DNA has been replicated.
B)   two sister chromatids exist.
C)   cell division hasn't yet occurred.
D)   the cell is probably ready for mitosis.
E)   All of the above.F) B) and E)
G) A) and D)

Question 9

Most adults survive chemotherapy,but unborn children frequently do not.Why do you think that is? Specifically,what is the difference between an adult and an unborn child that would account for this difference?

Accepted Answer

Most chemotherapeutic drugs inhibit cell...

Question 10

If a cell sustains irreparable DNA damage during the S phase of the cell cycle the cell will undergo _________.

Accepted Answer

The answer of If a cell sustains irreparable DNA damage...

Question 11

Define apoptosis.Why is apoptosis important?

Accepted Answer

Apoptosis is programmed cell d...

Question 12

A specific gene,called GRAB,prevents a cell from entering mitosis if there are any signs of DNA damage.This means that GRAB would be a type of

Accepted Answer

A)   cell cycle checkpoint.
B)   tumor-causing gene.
C)   non-hereditary gene.
D)   growth signal.
E)   mutation.F) A) and D)
G) B) and E)

Question 13

Which of the following is NOT a stage of mitosis?

Accepted Answer

A)   prophase
B)   metaphase
C)   interphase
D)   anaphase
E)   telophaseF) B) and E)
G) B) and C)

Question 14

Explain why radiation therapy is NOT appropriate treatment for a metastasized cancer.

Accepted Answer

Radiation is concentrated on areas conta...

Question 15

Proteins scan chromosomes for damage during the

Accepted Answer

A)   G1 checkpoint.
B)   beginning of the synthesis phase.
C)   apoptosis phase.
D)   G2 checkpoint.
E)   metaphase checkpoint.F) A) and C)
G) B) and E)

Question 16

If you were going to set up a clinical trial of a new chemotherapy drug that would be used in addition to traditional treatment for prostate cancer,who would you use as the control group for your experiment?

Accepted Answer

A)   patients with prostate cancer who received no treatment
B)   patients with prostate cancer who received traditional treatment alone
C)   patients with prostate cancer who were given the trial drug but no traditional treatment
D)   patients with prostate cancer who received traditional treatment plus the trial drug
E)   healthy patients with no prostate cancerF) A) and D)
G) B) and C)

Question 17

Physical side-effects from chemotherapy and radiotherapy could be maximally reduced by

Accepted Answer

A)   targeting specific tumor cells.
B)   reducing amounts of drug or radiation.
C)   reducing exposure time.
D)   better detection methods.
E)   using multiple drugs with radiation.F) A) and C)
G) C) and D)

Question 18

If you cut yourself,the damaged cells are

Accepted Answer

A)   sloughed off.
B)   repaired by surrounding cells.
C)   replaced by surrounding cells.
D)   repaired by your immune system.
E)   All the above.F) B) and D)
G) A) and E)

Question 19

What causes cancer to kill people?

Accepted Answer

A)   Cancer cells accumulate DNA mutations.
B)   Tumors can spread to other parts of the body.
C)   Cancer cells crowd out normal cells and disrupt organ functions.
D)   Cancer cells have uncontrolled cell division.
E)   Tumors cells contain abnormal DNAF) A) and C)
G) B) and C)

Question 20

Taxol was an important new chemotherapy drug because it

Accepted Answer

A)   was present in only very low amounts in tree bark.
B)   killed ovarian and breast cancer cells.
C)   targeted a different step of the cell cycle compared to other drugs.
D)   could be extracted from widely available trees.
E)   was effective and inexpensive.F) A) and E)
G) B) and D)

Exam 9: Cell Division and Mitosis Natures Pharmacy

Proteins scan chromosomes for damage during the

Correct AnswerverifiedShow Answer

If a cell sustains irreparable DNA damage during the S phase of the cell cycle the cell will undergo _________.

Correct AnswerverifiedShow Answer

Why would a chromosome decondense following mitosis?

Correct AnswerverifiedChromosomes decondense to allo...View AnswerShow Answer

If the cell does not ____________ during S phase,daughter cells may be missing some or have too many copies of certain genes.

Correct Answerverifiedaccurately...View AnswerShow Answer

Physical side-effects from chemotherapy and radiotherapy could be maximally reduced by

Correct AnswerverifiedShow Answer

A specific gene,called GRAB,prevents a cell from entering mitosis if there are any signs of DNA damage.This means that GRAB would be a type of

Correct AnswerverifiedShow Answer

Define apoptosis.Why is apoptosis important?

Correct AnswerverifiedApoptosis is programmed cell d...View AnswerShow Answer

If you were going to set up a clinical trial of a new chemotherapy drug that would be used in addition to traditional treatment for prostate cancer,who would you use as the control group for your experiment?

Correct AnswerverifiedShow Answer

Most adults survive chemotherapy,but unborn children frequently do not.Why do you think that is? Specifically,what is the difference between an adult and an unborn child that would account for this difference?

Correct AnswerverifiedMost chemotherapeutic drugs inhibit cell...View AnswerShow Answer

What causes cancer to kill people?

Correct AnswerverifiedShow Answer

Cancer may be caused by

Correct AnswerverifiedShow Answer

Our skin is our outermost layer,and it is exposed to all the hazards of the external environment.Thus,our skin cells are damaged on a regular basis and die.How does our body handle this frequent cell death?

Correct AnswerverifiedOur skin cells are replaced as...View AnswerShow Answer

In drawings of chromosomes,the "X" shape indicates that

Correct AnswerverifiedShow Answer

Which of the following help(s) to prevent cancer?

Correct AnswerverifiedShow Answer

Which of the following is NOT a stage of mitosis?

Correct AnswerverifiedShow Answer

If you cut yourself,the damaged cells are

Correct AnswerverifiedShow Answer

Sister chromatids are

Correct AnswerverifiedShow Answer

Explain why radiation therapy is NOT appropriate treatment for a metastasized cancer.

Correct AnswerverifiedRadiation is concentrated on areas conta...View AnswerShow Answer

Taxol was an important new chemotherapy drug because it

Correct AnswerverifiedShow Answer

Where do cancer cells differ in their cell cycle from normal cells?

Correct AnswerverifiedCancer cells seldom pause at t...View AnswerShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Chromosomes decondense to allo...
View Answer

Correct Answer
verified
accurately...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Apoptosis is programmed cell d...
View Answer

Correct Answer
verified

Correct Answer
verified
Most chemotherapeutic drugs inhibit cell...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Our skin cells are replaced as...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Radiation is concentrated on areas conta...
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Correct Answer
verified

Correct Answer
verified
Cancer cells seldom pause at t...
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