Question 1

The figure below shows a cell in the mitotic stage of

Accepted Answer

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

Question 2

When a portion of a chromosome breaks off and attaches to a different chromosome this is called a

Accepted Answer

A)   translocation.
B)   telomerase.
C)   apoptosis event.
D)   suppressor event.
E)   jumping gene.F) B) and E)
G) C) and D)

Question 3

The presence of which protein is required in order for chromatin to compact correctly within the nucleus?

Accepted Answer

A)   histone
B)   nucleosome
C)   actin
D)   chromatid
E)   myosinF) D) and E)
G) C) and D)

Question 4

The mitotic spindle is composed of ______________ and grows from the _______________ toward the center of the cell.

Accepted Answer

A)   microtubules; centrosome
B)   asters; spindle equator
C)   centrosomes; aster
D)   microtubules; chromatid
E)   microtubules; cleavage furrowF) A) and B)
G) A) and D)

Question 5

The term metastasis refers to the fact that cancer cells tend to

Accepted Answer

A)   destroy.
B)   divide.
C)   reproduce.
D)   shrink.
E)   travel.F) A) and E)
G) C) and E)

Question 6

Cyclins function by

Accepted Answer

A)   maintaining a constant level.
B)   preventing the functioning of kinases.
C)   combining with kinases.
D)   causing apoptosis.
E)   preventing apoptosis.F) C) and D)
G) A) and C)

Question 7

The figure below shows a cell in the mitotic stage of

Accepted Answer

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

Question 8

If cancer is discovered at an early stage,which treatment method is most often used?

Accepted Answer

A)   surgery
B)   radiation
C)   chemotherapy
D)   hormonal therapy
E)   drug therapyF) A) and B)
G) A) and C)

Question 9

A woman inherits a mutant BRCA1 allele from her mother.She has an increased risk of developing breast cancer because

Accepted Answer

A)   every cell in the woman's body has a copy of the mutant BRCA1 allele.
B)   she still has one normal allele of the BRCA1 gene that can make up for the loss of function in the mutant allele.
C)   some of the cells in her body are already cancerous, meaning that no further mutations are needed for a tumor to form.
D)   the normal BRCA1 allele is more likely to mutate than in an individual without a mutant BRCA1 allele.
E)   a mutation in her normal BRCA1 allele may lead to cancer, whereas a normal individual would have to acquire two mutations (one in each allele)  to develop cancer.F) C) and E)
G) D) and E)

Question 10

Stem cells that contain telomerase can be found in adults.

Accepted Answer

A) True 
 B)False

Question 11

Translocations can lead to cancer if they disrupt the genes that regulate the cell cycle.

Accepted Answer

A) True 
 B)False

Question 12

Susan was examining a cell under the microscope and noticed the formation of a cell plate in the midline of the cell and the formation of nuclei at opposite poles of the cell.The cell under examination was most likely a(n)

Accepted Answer

A)   animal cell in the M phase of the cell cycle.
B)   dividing bacterial cell.
C)   plant cell undergoing cytokinesis.
D)   animal cell undergoing cytokinesis.
E)   plant cell in the anaphase stage.F) All of the above
G) A) and D)

Question 13

Which of the following represents the phases of mitosis in their proper sequence?

Accepted Answer

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

Question 14

All of the following occur during the latter stages of mitotic prophase EXCEPT

Accepted Answer

A)   the coiling of chromosomes.
B)   the division of centromeres.
C)   the formation of spindles.
D)   the synthesis of DNA.
E)   the degradation of the nuclear envelope.F) B) and C)
G) A) and B)

Question 15

Which lifestyle choice is responsible for 90% of the cases of lung cancer among men?

Accepted Answer

A)   smoking
B)   using tanning beds
C)   excessive alcohol consumption
D)   drug use
E)   using smokeless tobaccoF) B) and E)
G) A) and E)

Question 16

Plant cells and animal cells differ in cytokinesis because

Accepted Answer

A)   plant cells need to build a cell wall while animal cells do not.
B)   plant cells need to build a cell wall while animal cells built the extra cellular matrix.
C)   animal cells need to build a cell membrane while plant cells do not.
D)   animal cells are living while plant cells are not.
E)   plant cells divide by mitosis while animal cells divide by meiosis.F) B) and C)
G) D) and E)

Question 17

A positive genetic test for telomerase indicates that

Accepted Answer

A)   RB is inactive.
B)   a cell is undergoing apoptosis.
C)   proto-oncogenes have not yet mutated.
D)   a cell is probably cancerous.
E)   tumor suppressors are active.F) B) and D)
G) A) and E)

Question 18

Some of the drugs used in chemotherapy work by

Accepted Answer

A)   increasing telomeres.
B)   preventing spindle formation.
C)   producing kinases.
D)   inhibiting cytokinesis.
E)   causing cells to divide quickly.F) All of the above
G) A) and E)

Question 19

Losing weight can reduce a persons risk for cancer by up to 40%.

Accepted Answer

A) True 
 B)False

Question 20

How do the daughter cells at the end of mitosis and cytokinesis compare to their parent cell when it was in G1 of the cell cycle?

Accepted Answer

A)   The daughter cells have half of the amount of cytoplasm and half the amount of DNA.
B)   The daughter cells have half the number of chromosomes and half the amount of DNA.
C)   The daughter cells have the same number of chromosomes and half the amount of DNA.
D)   The daughter cells have the same number of chromosomes and the same amount of DNA.
E)   The daughter cells have the same number of chromosomes and twice the amount of DNA.F) A) and D)
G) A) and C)

Exam 8: Cellular Reproduction

How do the daughter cells at the end of mitosis and cytokinesis compare to their parent cell when it was in G1 of the cell cycle?

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Which of the following represents the phases of mitosis in their proper sequence?

Correct AnswerverifiedShow Answer

Susan was examining a cell under the microscope and noticed the formation of a cell plate in the midline of the cell and the formation of nuclei at opposite poles of the cell.The cell under examination was most likely a(n)

Correct AnswerverifiedShow Answer

Which lifestyle choice is responsible for 90% of the cases of lung cancer among men?

Correct AnswerverifiedShow Answer

The mitotic spindle is composed of ______________ and grows from the _______________ toward the center of the cell.

Correct AnswerverifiedShow Answer

The term metastasis refers to the fact that cancer cells tend to

Correct AnswerverifiedShow Answer

Translocations can lead to cancer if they disrupt the genes that regulate the cell cycle.

Correct AnswerverifiedShow Answer

Plant cells and animal cells differ in cytokinesis because

Correct AnswerverifiedShow Answer

When a portion of a chromosome breaks off and attaches to a different chromosome this is called a

Correct AnswerverifiedShow Answer

All of the following occur during the latter stages of mitotic prophase EXCEPT

Correct AnswerverifiedShow Answer

Some of the drugs used in chemotherapy work by

Correct AnswerverifiedShow Answer

Losing weight can reduce a persons risk for cancer by up to 40%.

Correct AnswerverifiedShow Answer

A positive genetic test for telomerase indicates that

Correct AnswerverifiedShow Answer

The figure below shows a cell in the mitotic stage of

Correct AnswerverifiedShow Answer

Stem cells that contain telomerase can be found in adults.

Correct AnswerverifiedShow Answer

If cancer is discovered at an early stage,which treatment method is most often used?

Correct AnswerverifiedShow Answer

The figure below shows a cell in the mitotic stage of

Correct AnswerverifiedShow Answer

The presence of which protein is required in order for chromatin to compact correctly within the nucleus?

Correct AnswerverifiedShow Answer

Cyclins function by

Correct AnswerverifiedShow Answer

A woman inherits a mutant BRCA1 allele from her mother.She has an increased risk of developing breast cancer because

Correct AnswerverifiedShow Answer

How do the daughter cells at the end of mitosis and cytokinesis compare to their parent cell when it was in G₁ of the cell cycle?

Correct Answer
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The mitotic spindle is composed of and grows from the _ toward the center of the cell.

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