Question 1

What does NOT happen in the cytokinesis of plant cells?

Accepted Answer

A)  Vesicles from the golgi apparatus move along the microtubules and fuse form cell plate.
B)  Cell wall forms between the two daughter cells.
C)  The two nuclei are segregated into separate daughter cells.
D)  When the vesicles fuse,their membranes contribute to the formation of plasma membrane on either side of the cell plate.
E)  Formation of the cleavage furrow separates the cells.F) A) and B)
G) B) and C)

Question 2

In mitosis and cytokinesis,the main difference between plant and animal cells is that

Accepted Answer

A)  plants do not undergo cytokinesis.
B)  plants produce a cell plate to segregate the daughter nuclei,while animals form a cleavage furrow.
C)  plants have a central vacuole,while animal cells do not.
D)  plants produce a cell membrane in cytokinesis,while animals form a cell plate.
E)  in plants,kinetochore microtubules shorten and draw chromosomes toward the poles;in animals,polar microtubules lengthen to push chromatids apart.F) A) and B)
G) B) and E)

Question 3

You prepare the first ever karyotype of an endangered species of frog.Upon examination you find that all the chromosomes are metacentric.This is going to make it difficult to identify

Accepted Answer

A)  which is the p arm of the chromosome.
B)  which is the q arm of the chromosome.
C)  the unique G banding for each chromosome.
D)  if the chromosomes are telocentric.
E)  both the p and q arms of the chromosomE.F) None of the above
G) C) and E)

Question 4

Which of the following mutations will not alter the amount of genetic material on the chromosomes?

Accepted Answer

A)  duplication
B)  inversion
C)  simple translocation
D)  deficiency
E)  inversion and simple translocationF) None of the above
G) B) and C)

Question 5

In a haploid dominant species

Accepted Answer

A)  the multicellular organism is diploid and only the gametes are haploid.
B)  the multicellular organism is haploid and only the gametes are diploid.
C)  diploid cells are produced by mitosis and haploid cells are produced by meiosis.
D)  the multicellular organism is diploid,and only the zygote is haploiD.
E)  the multicellular organism is haploid,and only the zygote is diploid.F) B) and C)
G) A) and B)

Question 6

Place the following events of mitosis in the correct order.
I.Sister chromatids align on the metaphase plate.
II.The cleavage furrow forms.
III.The nuclear membrane breaks up.
IV.Sister chromatids begin to condense.
V.Sister chromatids separate.

Accepted Answer

A)  I,II,III,IV,V
B)  III,IV,I,V,II
C)  IV,III,I,V,II
D)  III,II,I,IV,V
E)  IV,I,III,V,IIF) B) and E)
G) B) and D)

Question 7

Why must the life cycle of sexually reproducing species alternate between haploid and diploid stages?

Accepted Answer

A)  Meiosis must occur at some point in the life cycle to prevent a doubling of chromosomes in each generation.
B)  Mitosis must occur at some point in the life cycle to prevent a reduction of chromosomes in each generation.
C)  The diploid stage allows for genetic recombination.
D)  Meiosis must occur at some point in the life cycle to prevent a reduction of chromosomes in each generation.
E)  Haploid cells cannot grow independently of diploid cells.F) A) and B)
G) C) and D)

Question 8

The following graph represents the concentration of cyclins over the course of the cell cycle.Which of the following statements is TRUE regarding the phase of the cell cycle where the green arrow is pointing?

Accepted Answer

A)  At this point in the cell cycle,the cell has determined that the DNA is intact and environmental conditions are favorable for DNA replication
B)  At this point in the cell cycle,chromosomes have properly aligned on the metaphase plate and are beginning to separate
C)  At this point in the cell cycle,DNA has already been replicated correctly and the cell is preparing for mitosis
D)  At this point in the cycle the cell is determining if environmental conditions are favorable for growth and proliferation
E)  At this point in the cycle the cell is continuing to grow and make abundant tubulin proteinsF) B) and E)
G) A) and B)

Question 9

One major difference between metaphase I and metaphase II is the presence or absence of bivalents.

Accepted Answer

A) True 
 B)False

Question 10

Synaptonemal complexes form during

Accepted Answer

A)  prophase of meiosis I.
B)  prophase of meiosis II.
C)  prophase of meiosis I and meiosis II.
D)  prometaphase of meiosis I.
E)  prometaphase of meiosis II.F) B) and D)
G) D) and E)

Question 11

Colchicine is a toxin that binds to tubulin proteins and prevents microtubules from polymerizing.What affect might this have on dividing cells?

Accepted Answer

A)  Cells will be able to complete mitosis,but cytokinesis will not occur
B)  Chromosomes will not be able to condense,so mitosis will not occur
C)  Sister chromatids will not be properly separated into separate daughter cells
D)  Replicated chromosomes will not be able to stick together,so sister chromatids will not properly sort into daughter nuclei
E)  The cell will not be able to move past the G1 checkpoint,so DNA will not be replicated.F) A) and D)
G) A) and E)

Question 12

At prometaphase,the sister chromatids are organized into a single row in the center of the cell.

Accepted Answer

A) True 
 B)False

Question 13

The process by which haploid cells are produced from diploid cells is called

Accepted Answer

A)  sexual reproduction.
B)  mitosis.
C)  fertilization.
D)  meiosis.
E)  reduction.F) B) and E)
G) B) and D)

Question 14

Humans have __________ different pairs of autosomes.

Accepted Answer

A)  46
B)  44
C)  23
D)  22
E)  11F) D) and E)
G) C) and D)

Exam 13: The Eukaryotic Cell Cycle, Mitosis, and Meiosis

The process by which haploid cells are produced from diploid cells is called

Correct Answer
verified

Why must the life cycle of sexually reproducing species alternate between haploid and diploid stages?

Correct Answer
verified

At prometaphase,the sister chromatids are organized into a single row in the center of the cell.

Correct Answer
verified

Which of the following mutations will not alter the amount of genetic material on the chromosomes?

Correct Answer
verified

In mitosis and cytokinesis,the main difference between plant and animal cells is that

Correct Answer
verified

Humans have __________ different pairs of autosomes.

Correct Answer
verified

Place the following events of mitosis in the correct order. I.Sister chromatids align on the metaphase plate. II.The cleavage furrow forms. III.The nuclear membrane breaks up. IV.Sister chromatids begin to condense. V.Sister chromatids separate.

Correct Answer
verified

You prepare the first ever karyotype of an endangered species of frog.Upon examination you find that all the chromosomes are metacentric.This is going to make it difficult to identify

Correct Answer
verified

Colchicine is a toxin that binds to tubulin proteins and prevents microtubules from polymerizing.What affect might this have on dividing cells?

Correct Answer
verified

Synaptonemal complexes form during

Correct Answer
verified

One major difference between metaphase I and metaphase II is the presence or absence of bivalents.

Correct Answer
verified

What does NOT happen in the cytokinesis of plant cells?

Correct Answer
verified

In a haploid dominant species

Correct Answer
verified

The following graph represents the concentration of cyclins over the course of the cell cycle.Which of the following statements is TRUE regarding the phase of the cell cycle where the green arrow is pointing?

Correct Answer
verified

Exam 13: The Eukaryotic Cell Cycle, Mitosis, and Meiosis

The process by which haploid cells are produced from diploid cells is called

Correct AnswerverifiedShow Answer

Why must the life cycle of sexually reproducing species alternate between haploid and diploid stages?

Correct AnswerverifiedShow Answer

At prometaphase,the sister chromatids are organized into a single row in the center of the cell.

Correct AnswerverifiedShow Answer

Which of the following mutations will not alter the amount of genetic material on the chromosomes?

Correct AnswerverifiedShow Answer

In mitosis and cytokinesis,the main difference between plant and animal cells is that

Correct AnswerverifiedShow Answer

Humans have __________ different pairs of autosomes.

Correct AnswerverifiedShow Answer

Place the following events of mitosis in the correct order. I.Sister chromatids align on the metaphase plate. II.The cleavage furrow forms. III.The nuclear membrane breaks up. IV.Sister chromatids begin to condense. V.Sister chromatids separate.

Correct AnswerverifiedShow Answer

You prepare the first ever karyotype of an endangered species of frog.Upon examination you find that all the chromosomes are metacentric.This is going to make it difficult to identify

Correct AnswerverifiedShow Answer

Colchicine is a toxin that binds to tubulin proteins and prevents microtubules from polymerizing.What affect might this have on dividing cells?

Correct AnswerverifiedShow Answer

Synaptonemal complexes form during

Correct AnswerverifiedShow Answer

One major difference between metaphase I and metaphase II is the presence or absence of bivalents.

Correct AnswerverifiedShow Answer

What does NOT happen in the cytokinesis of plant cells?

Correct AnswerverifiedShow Answer

In a haploid dominant species

Correct AnswerverifiedShow Answer

The following graph represents the concentration of cyclins over the course of the cell cycle.Which of the following statements is TRUE regarding the phase of the cell cycle where the green arrow is pointing?

Correct AnswerverifiedShow Answer

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