Question 1

Cancers are groups of cells that divide rapidly and uncontrollably. Thus cancer cells

Accepted Answer

A)   are always in the G₀ phase.
B)   never enter the cell cycle.
C)   probably have a very short G₁ phase.
D)   are stuck at the metaphase plate.E) B) and C)
F) C) and D)

Question 2

Induced pluripotent stem cells (iPS)  differ from embryonic stem cells (hES)  because

Accepted Answer

A)   iPS cells are made with viruses rather than being harvested from an embryo
B)   iPS cells exhibit the same properties as hES cells but are made from adult somatic cells rather than embryonic cells.
C)   hES cells have the same DNA as their recipient and are less likely to be rejected than iPS cells.
D)   hES cells are more highly differentiated than iPS cells.E) A) and B)
F) A) and C)

Question 3

Sister chromatids are held together at a constriction point called a ____________.

Accepted Answer

The answer of Sister chromatids are held together at a...

Question 4

Meiosis I is called a reduction division because the

Accepted Answer

A)   need for mitosis is reduced.
B)   time it takes for the cell to divide is reduced.
C)   chromosome number goes from diploid to haploid.
D)   cell size is reduced.E) All of the above
F) B) and C)

Question 5

New nuclei form during the anaphase portion of cell division.

Accepted Answer

A) True 
 B)False  False

Question 6

A drug inhibits the formation of microtubules. This drug is added to a culture of cells during G₂. How might this drug affect the cell division?

Accepted Answer

A)   Cytokinesis could not occur.
B)   The nuclear envelope would be unable to break down.
C)   DNA synthesis would not occur.
D)   The spindle apparatus would be unable to form.E) B) and D)
F) B) and C)

Question 7

Cytokinesis and mitosis are the same processes.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following must occur before cell division begins?

Accepted Answer

A)   duplication of the nucleus
B)   DNA synthesis
C)   cytokinesis
D)   DNA segregationE) None of the above
F) All of the above

Question 9

The four cells that result from meiosis are _________ rather than diploid.

Accepted Answer

haploid

Question 10

An unduplicated chromosome contains

Accepted Answer

A)   two sister chromatids.
B)   a single molecule of DNA.
C)   the cell's karyotype.
D)   its own spindle poles.E) None of the above
F) A) and B)

Question 11

Which of the following choices states a correct reason why the process of cell division is different for prokaryotic than for eukaryotic cells?

Accepted Answer

A)   Prokaryotes have a circular DNA molecule.
B)   Prokaryotic cells do not undergo cell division.
C)   Prokaryotic cells are larger than eukaryotic cells.
D)   Prokaryotic DNA contains different bases from those in eukaryotic DNA.E) A) and B)
F) A) and C)

Question 12

Which of the following series correctly represents the levels of DNA packing from simplest to most dense?

Accepted Answer

A)   DNA strand → chromatin → chromosomes
B)   Chromosome → chromatin → DNA strand
C)   Chromosome → chromatin → DNA
D)   Chromatin → DNA → centromereE) C) and D)
F) B) and C)

Question 13

Gametes contain _________ the genetic material that a generalized body cell contains.

Accepted Answer

A)   half
B)   the same amount of
C)   twice
D)   four timesE) All of the above
F) C) and D)

Question 14

Cell division, the climax of the cell cycle, consists of

Accepted Answer

A)   chromosome replication and separation.
B)   the breakup of the nucleus at the metaphase plate.
C)   mitosis or meiosis.
D)   the formation of a new karyotype.E) B) and C)
F) A) and B)

Question 15

The mitotic spindle guides the movement of chromosomes during certain stages of mitosis.

Accepted Answer

A) True 
 B)False

Question 16

By the time a cell enters meiosis II, it has

Accepted Answer

A)   become haploid.
B)   re-formed bivalents.
C)   become temporarily diploid.
D)   rejoined its maternal homologue.E) None of the above
F) A) and B) A

Question 17

The random distribution of chromosomes into daughter cells during ____________ of meiosis is one way to create genetic diversity.

Accepted Answer

The answer of The random distribution of chromosomes into daughter...

Question 18

The completion of the physical division of the parent cell during the last stage of mitosis is known as

Accepted Answer

A)   centrosome formation.
B)   G₀.
C)   cytokinesis.
D)   meiosis.E) B) and C)
F) All of the above

Question 19

Unlike mitosis, the nuclear membrane doesn't break down in meiosis II.

Accepted Answer

A) True 
 B)False

Question 20

During anaphase, daughter chromosomes

Accepted Answer

A)   are condensed into chromatin.
B)   move toward opposite spindle poles.
C)   form homologous pairs.
D)   move toward the same spindle pole.E) A) and D)
F) None of the above

Exam 9: Cell Division

Cancers are groups of cells that divide rapidly and uncontrollably. Thus cancer cells

Correct AnswerverifiedShow Answer

Induced pluripotent stem cells (iPS) differ from embryonic stem cells (hES) because

Correct AnswerverifiedShow Answer

Sister chromatids are held together at a constriction point called a ____________.

Correct AnswerverifiedShow Answer

Meiosis I is called a reduction division because the

Correct AnswerverifiedShow Answer

New nuclei form during the anaphase portion of cell division.

Correct AnswerverifiedFalse

A drug inhibits the formation of microtubules. This drug is added to a culture of cells during G₂. How might this drug affect the cell division?

Correct AnswerverifiedShow Answer

Cytokinesis and mitosis are the same processes.

Correct AnswerverifiedShow Answer

Which of the following must occur before cell division begins?

Correct AnswerverifiedShow Answer

The four cells that result from meiosis are _________ rather than diploid.

Correct Answerverifiedhaploid

An unduplicated chromosome contains

Correct AnswerverifiedShow Answer

Which of the following choices states a correct reason why the process of cell division is different for prokaryotic than for eukaryotic cells?

Correct AnswerverifiedShow Answer

Which of the following series correctly represents the levels of DNA packing from simplest to most dense?

Correct AnswerverifiedShow Answer

Gametes contain _________ the genetic material that a generalized body cell contains.

Correct AnswerverifiedShow Answer

Cell division, the climax of the cell cycle, consists of

Correct AnswerverifiedShow Answer

The mitotic spindle guides the movement of chromosomes during certain stages of mitosis.

Correct AnswerverifiedShow Answer

By the time a cell enters meiosis II, it has

Correct AnswerverifiedA

The random distribution of chromosomes into daughter cells during ____________ of meiosis is one way to create genetic diversity.

Correct AnswerverifiedShow Answer

The completion of the physical division of the parent cell during the last stage of mitosis is known as

Correct AnswerverifiedShow Answer

Unlike mitosis, the nuclear membrane doesn't break down in meiosis II.

Correct AnswerverifiedShow Answer

During anaphase, daughter chromosomes

Correct AnswerverifiedShow Answer

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False

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haploid

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A

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