Question 1

Binary fission in bacteria differs from mitosis because

Accepted Answer

A)  the chromosome copies attach to the plasma membrane and are pulled apart by cell growth.
B)  the chromosome is a simple DNA strand without complex proteins and no spindle forms.
C)  there is no nuclear membrane to break down and rebuild.
D)  All of the choices are correct.
E)  None of the choices are correct.F) A) and B)
G) A) and C)

Question 2

If a parent cell has 48 chromosomes,how many chromosomes will each daughter cell have after mitosis and cytokinesis occurs?

Accepted Answer

A)  24 chromosomes
B)  48 chromosomes
C)  12 chromosomes
D)  96 chromosomesE) A) and D)
F) A) and C)

Question 3

What is (are) the structures designated by the letter 'A'.

Accepted Answer

A)  spindle fibers
B)  centrioles
C)  chromosomes
D)  kinetochore microtubulesE) All of the above
F) C) and D)

Question 4

Which statement is NOT true about mitosis?

Accepted Answer

A)  Mitosis is a process that duplicates and divides the nuclear contents only.
B)  Mitosis produces two daughter cells that contain the same number of chromosomes as the parent cell.
C)  Mitosis produces two daughter cells that contain the same kinds of chromosomes as the parent cell.
D)  Mitosis uses a diploid (2n) parent cell to form daughter cells containing a haploid number(n) of chromosomes.
E)  Mitosis is involved in development of a fertilized egg into a multicellular organism.F) A) and B)
G) D) and E)

Question 5

What structure will code for the proteins that will promote the normal cell cycle and prevent apoptosis?

Accepted Answer

A)  Tumor suppressor genes
B)  Oncogenes
C)  Caspases
D)  Proto-oncogenesE) C) and D)
F) B) and C)

Question 6

Interphase:

Accepted Answer

A)  occupies the majority of the cell cycle
B)  includes G1,S and G2 stages
C)  results in an increase in cell size
D)  all of the above
E)  none of the aboveF) C) and E)
G) B) and E)

Question 7

can be unleashed by internal or external signals.

Accepted Answer

A) True 
 B)False

Question 8

Oncogenes are all of the following EXCEPT:

Accepted Answer

A)  mutated proto-oncogenes
B)  cancer causing genes
C)  genes that stimulate uncontrolled cell divisions
D)  tumor suppressor genesE) A) and C)
F) None of the above

Question 9

Cancer cells require many nutrients,which are supplied by blood vessels.The growth of new blood vessels to cancerous tissue is called:

Accepted Answer

A)  angiogenesis
B)  metastasis
C)  carcinogenesis
D)  apotosisE) A) and D)
F) None of the above

Question 10

Apoptosis

Accepted Answer

A)  is programmed cell death.
B)  is a process that acts to decrease the number of somatic cells.
C)  frees the fingers and toes of the human embryo from their 'webbed' structure to independent structures.
D)  All of the choices are correct.E) B) and D)
F) None of the above

Question 11

What factors are evaluated before a cell is allowed to proceed through the G1 checkpoint?

Accepted Answer

A)  growth signals
B)  availability of nutrients
C)  the integrity of cellular DNA
D)  all of the above
E)  none of theseF) A) and B)
G) C) and D)

Question 12

What phase of mitosis is pictured?

Accepted Answer

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

Question 13

The diploid (2n) number of chromosomes for a human being is

Accepted Answer

A)  23.
B)  24.
C)  44.
D)  46.
E)  48.F) B) and E)
G) A) and B)

Question 14

Which does NOT occur in telophase?

Accepted Answer

A)  Cytokinesis is under way.
B)  The nuclear envelope is being reconstructed.
C)  The centromeres split apart.
D)  Chromosomes de-condense into chromatin.
E)  The nucleolus reforms.F) A) and B)
G) C) and D)

Exam 9: The Cell Cycle and Cellular Reproduction

What factors are evaluated before a cell is allowed to proceed through the G₁ checkpoint?

Correct Answer
verified

Interphase:

Correct Answer
verified

Oncogenes are all of the following EXCEPT:

Correct Answer
verified

Which statement is NOT true about mitosis?

Correct Answer
verified

Apoptosis

Correct Answer
verified

What phase of mitosis is pictured?

Correct Answer
verified

If a parent cell has 48 chromosomes,how many chromosomes will each daughter cell have after mitosis and cytokinesis occurs?

Correct Answer
verified

can be unleashed by internal or external signals.

Correct Answer
verified

Which does NOT occur in telophase?

Correct Answer
verified

Cancer cells require many nutrients,which are supplied by blood vessels.The growth of new blood vessels to cancerous tissue is called:

Correct Answer
verified

What is (are) the structures designated by the letter 'A'.

Correct Answer
verified

The diploid (2n) number of chromosomes for a human being is

Correct Answer
verified

Binary fission in bacteria differs from mitosis because

Correct Answer
verified

What structure will code for the proteins that will promote the normal cell cycle and prevent apoptosis?

Correct Answer
verified

Exam 9: The Cell Cycle and Cellular Reproduction

What factors are evaluated before a cell is allowed to proceed through the G1 checkpoint?

Correct AnswerverifiedShow Answer

Interphase:

Correct AnswerverifiedShow Answer

Oncogenes are all of the following EXCEPT:

Correct AnswerverifiedShow Answer

Which statement is NOT true about mitosis?

Correct AnswerverifiedShow Answer

Apoptosis

Correct AnswerverifiedShow Answer

What phase of mitosis is pictured?

Correct AnswerverifiedShow Answer

If a parent cell has 48 chromosomes,how many chromosomes will each daughter cell have after mitosis and cytokinesis occurs?

Correct AnswerverifiedShow Answer

can be unleashed by internal or external signals.

Correct AnswerverifiedShow Answer

Which does NOT occur in telophase?

Correct AnswerverifiedShow Answer

Cancer cells require many nutrients,which are supplied by blood vessels.The growth of new blood vessels to cancerous tissue is called:

Correct AnswerverifiedShow Answer

What is (are) the structures designated by the letter 'A'.

Correct AnswerverifiedShow Answer

The diploid (2n) number of chromosomes for a human being is

Correct AnswerverifiedShow Answer

Binary fission in bacteria differs from mitosis because

Correct AnswerverifiedShow Answer

What structure will code for the proteins that will promote the normal cell cycle and prevent apoptosis?

Correct AnswerverifiedShow Answer

What factors are evaluated before a cell is allowed to proceed through the G₁ checkpoint?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified