Question 1

The region that contains the genetic information in a bacterial cell is called the

Accepted Answer

A)  nucleus.
B)  nucleoid.
C)  nucleolus.
D)  nucleosome.
E)  nucleoprotein.F) A) and E)
G) A) and D)

Question 2

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) A) and D)
F) A) and B)

Question 3

Use the following line to complete the next group of questions.

The enzymes that bring about apoptosis:
-are only present in the cell immediately before apoptosis begins.

Accepted Answer

A) True 
 B)False

Question 4

Explain how a geneticist could attempt to prevent cancer by manipulating a person's proto-oncogenes.

Accepted Answer

Answers may vary but the essay should di...

Question 5

Which stage of the cell cycle focuses on cell growth,replication of organelles,and the accumulation of material for synthesizing DNA?

Accepted Answer

A)  M phase
B)  G1 phase
C)  G2 phase
D)  S phase
E)  G0 phaseF) A) and C)
G) All of the above B

Question 6

Generally,brain and nerve cells are not able to regenerate after injury because they have left the cell cycle and are unable to return.

Accepted Answer

A) True 
 B)False

Question 7

Use the following line to complete the next group of questions.

The enzymes that bring about apoptosis:
-can be unleashed by internal or external signals.

Accepted Answer

A) True 
 B)False  True

Question 8

Which of the following are the critical checkpoints during interphase?

Accepted Answer

A)  M to G1 stage and G2 to M stage
B)  S to G2 stage and G2 to M stage
C)  G1 to S stage and G2 to M stage
D)  M to G1 stage and S to G2 stageE) C) and D)
F) B) and D)

Question 9

Virtually all of the specialized cells of multicellular organisms

Accepted Answer

A)  develop through mutation from less specialized cells of the organism.
B)  contain more genetic material than less specialized cells of the same organism.
C)  contain less genetic material than less specialized cells of the same organism.
D)  have the same amount of DNA and the same number of chromosomes as all other cells of the organism and develop from the same basic stem cells.E) B) and C)
F) None of the above

Question 10

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 answer choices are correct.
E)  Only A and C are correct.F) None of the above
G) A) and B)

Question 11

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 there is no spindle formation.
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) C) and D)
G) A) and E)

Question 12

Which statement is NOT true about eukaryotic chromosomes?

Accepted Answer

A)  There is only one chromosome of each type in each body cell.
B)  Chromosomes contain both DNA and associated histones.
C)  Chromosomes condense from chromatin at the start of mitosis.
D)  Chromosomes disperse back into chromatin at the end of mitosis.
E)  Chromosomes are not located within the nuclear envelope during mitosis.F) A) and C)
G) C) and E)

Question 13

Which sequence of the mitotic stages is correct?

Accepted Answer

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

Question 14

Which of the following accurately describe mitosis? Select all that apply.

Accepted Answer

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

Question 15

Which stage is most associated with a cell that is unable to divide again,such as a muscle or nerve cell?

Accepted Answer

A)  M phase
B)  G1 phase
C)  G2 phase
D)  S phase
E)  G0 phaseF) B) and C)
G) B) and D) E

Question 16

Which statement below best describes the difference between mitosis and cytokinesis?

Accepted Answer

A)  Mitosis is the portion of the cell cycle that divides the nuclear material while cytokinesis divides the cytoplasm.
B)  Mitosis is the portion of the cell cycle that divides the cytoplasm while cytokinesis divides the nuclear material.
C)  Mitosis is the portion of the cell cycle that uses a contractile ring to divide the nuclear material while cytokinesis uses the contractile ring to divide the cell membrane.
D)  Mitosis is the portion of the cell cycle that uses a cell plate to divide the cell membrane in plant cells while cytokinesis uses a contractile ring to divide the cell membrane in animal cells.E) None of the above
F) A) and D)

Question 17

Which of the following is NOT true about cancer cells?

Accepted Answer

A)  They never fully differentiate.
B)  They exhibit contact inhibition.
C)  They exhibit uncontrolled growth.
D)  They exhibit disorganized growth.
E)  They may undergo metastasis.F) All of the above
G) A) and C)

Question 18

The event that signals the start of anaphase is

Accepted Answer

A)  division of the centromeres to separate sister chromatids.
B)  migration of the centrioles to opposite poles of the nuclear space.
C)  a cleavage furrow starts to form.
D)  asters disappear.E) B) and D)
F) B) and C)

Question 19

Which of the following codes 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 D)

Question 20

Use the following line to complete the next group of questions.

The enzymes that bring about apoptosis:
-are called caspases.

Accepted Answer

A) True 
 B)False

Exam 9: The Cell Cycle and Cellular Reproduction

The region that contains the genetic information in a bacterial cell is called the

Correct AnswerverifiedShow Answer

Apoptosis

Correct AnswerverifiedShow Answer

Use the following line to complete the next group of questions. The enzymes that bring about apoptosis: -are only present in the cell immediately before apoptosis begins.

Correct AnswerverifiedShow Answer

Explain how a geneticist could attempt to prevent cancer by manipulating a person's proto-oncogenes.

Correct AnswerverifiedAnswers may vary but the essay should di...View AnswerShow Answer

Which stage of the cell cycle focuses on cell growth,replication of organelles,and the accumulation of material for synthesizing DNA?

Correct AnswerverifiedB

Generally,brain and nerve cells are not able to regenerate after injury because they have left the cell cycle and are unable to return.

Correct AnswerverifiedShow Answer

Use the following line to complete the next group of questions. The enzymes that bring about apoptosis: -can be unleashed by internal or external signals.

Correct AnswerverifiedTrue

Which of the following are the critical checkpoints during interphase?

Correct AnswerverifiedShow Answer

Virtually all of the specialized cells of multicellular organisms

Correct AnswerverifiedShow Answer

Interphase

Correct AnswerverifiedShow Answer

Binary fission in bacteria differs from mitosis because

Correct AnswerverifiedShow Answer

Which statement is NOT true about eukaryotic chromosomes?

Correct AnswerverifiedShow Answer

Which sequence of the mitotic stages is correct?

Correct AnswerverifiedShow Answer

Which of the following accurately describe mitosis? Select all that apply.

Correct AnswerverifiedShow Answer

Which stage is most associated with a cell that is unable to divide again,such as a muscle or nerve cell?

Correct AnswerverifiedE

Which statement below best describes the difference between mitosis and cytokinesis?

Correct AnswerverifiedShow Answer

Which of the following is NOT true about cancer cells?

Correct AnswerverifiedShow Answer

The event that signals the start of anaphase is

Correct AnswerverifiedShow Answer

Which of the following codes for the proteins that will promote the normal cell cycle and prevent apoptosis?

Correct AnswerverifiedShow Answer

Use the following line to complete the next group of questions. The enzymes that bring about apoptosis: -are called caspases.

Correct AnswerverifiedShow Answer

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B

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True

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E

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