Question 1

Which of the following statements about cell division is correct?

Accepted Answer

A)  It is the process by which organisms grow and maintain their tissues. 
B)  It is no longer necessary once an organism reaches maturity. 
C)  It occurs in two sequential stages in all cells: mitosis and meiosis. 
D)  It is the process by which fertilization occurs. 
A)  It is the process by which organisms grow and maintain their tissues. 
B)  It is no longer necessary once an organism reaches maturity. 
C)  It occurs in two sequential stages in all cells: mitosis and meiosis. 
D)  It is the process by which fertilization occurs.

Question 2

Explain which of the three cell division processes (mitosis,meiosis,binary fission)is most complex and summarize why it is necessary to promote genetic diversity and maintain a constant chromosome number in organisms.

Accepted Answer

Meiosis is the most complex of the three

Question 3

Which of the following predicts a likely outcome of bypassing the G2 checkpoint in the cell cycle?

Accepted Answer

A)  Damaged DNA would be immediately replicated and passed on to the two daughter cells,giving rise to helpful,new alleles. 
B)  Incompletely replicated DNA may be passed to the two daughter cells; these cells could be lacking specific genes or chromosomes and would likely not survive. 
C)  The cell cycle would pause if cell size or nutrient supply is inadequate,DNA is damaged,or DNA replication is incomplete. 
D)  The cell cycle would simply skip mitosis and go directly to G1 to start over. 
A)  Damaged DNA would be immediately replicated and passed on to the two daughter cells,giving rise to helpful,new alleles. 
B)  Incompletely replicated DNA may be passed to the two daughter cells; these cells could be lacking specific genes or chromosomes and would likely not survive. 
C)  The cell cycle would pause if cell size or nutrient supply is inadequate,DNA is damaged,or DNA replication is incomplete. 
D)  The cell cycle would simply skip mitosis and go directly to G1 to start over.

Question 4

When a germ cell has completed both rounds of meiosis,cells are created which are

Accepted Answer

A)  diploid,and each sister chromatid is in one of two different daughter cells. 
B)  diploid,and one of each homologous chromosome pair is in one of two different daughter cells. 
C)  haploid,and each sister chromatid is in one of four different daughter cells. 
A)  diploid,and each sister chromatid is in one of two different daughter cells. 
B)  diploid,and one of each homologous chromosome pair is in one of two different daughter cells. 
C)  haploid,and each sister chromatid is in one of four different daughter cells.

Question 5

According to the image below,during which phase of the cell cycle is the genetic material evenly partitioned between daughter cells?

Accepted Answer

A)  Region 1 
B)  Region 2 
C)  Region 5 
D)  Region 6 
A)  Region 1 
B)  Region 2 
C)  Region 5 
D)  Region 6

Question 6

The process of cell division is different for prokaryotic versus eukaryotic cells because

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. 
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.

Question 7

Gametes are produced by meiosis rather than mitosis because

Accepted Answer

A)  mitosis would produce too many sister cells. 
B)  meiosis reduces the chromosome number so that zygotes produced will have one full genome. 
C)  meiosis doubles the chromosome number so that each gamete has twice the usual number of genes. 
D)  meiosis ensures that the gametes are identical to the cell that produced them. 
A)  mitosis would produce too many sister cells. 
B)  meiosis reduces the chromosome number so that zygotes produced will have one full genome. 
C)  meiosis doubles the chromosome number so that each gamete has twice the usual number of genes. 
D)  meiosis ensures that the gametes are identical to the cell that produced them.

Question 8

When examining the rapidly dividing cells of a fish embryo,a researcher notices a cell that seems to contain two nuclei.The middle of the cell is pinched inward.This cell must be in ________ of mitosis.

Accepted Answer

A)  prophase 
B)  telophase 
C)  metaphase 
D)  anaphase 
A)  prophase 
B)  telophase 
C)  metaphase 
D)  anaphase

Question 9

All of the following contribute to genetic uniqueness EXCEPT

Accepted Answer

A)  binary fission. 
B)  independent assortment. 
C)  crossing over. 
D)  random fertilization. 
A)  binary fission. 
B)  independent assortment. 
C)  crossing over. 
D)  random fertilization.

Question 10

Which of the following is known to result from the disruption of mitosis and meiosis?

Accepted Answer

A)  Alzheimer's disease 
B)  prostate cancer 
C)  autism 
D)  heart disease 
A)  Alzheimer's disease 
B)  prostate cancer 
C)  autism 
D)  heart disease

Question 11

A cell containing 56 chromosomes is undergoing meiosis.Explain how chromosome number changes as the cells proceed through meiosis.

Accepted Answer

A cell whose diploid chromosome number i

Question 12

The circle near the center of the replicated chromosome below represents a

Accepted Answer

A)  chromatid. 
B)  centromere. 
C)  centriole. 
D)  homologous chromosome. 
A)  chromatid. 
B)  centromere. 
C)  centriole. 
D)  homologous chromosome.

Question 13

Which processes associated with meiosis ensure genetic diversity in offspring? Name two processes that promote variation and explain how they operate.

Accepted Answer

There are three processes that allow for

Question 14

Which of the following is associated with mitosis?

Accepted Answer

A)  independent assortment 
B)  maintenance of chromosome number 
C)  crossing over 
D)  reductional division 
A)  independent assortment 
B)  maintenance of chromosome number 
C)  crossing over 
D)  reductional division

Question 15

Chromosomes decondense and nuclear envelopes form during the ________ portion of mitosis.

Accepted Answer

The answer of Chromosomes decondense and nuclear envelopes form during...

Question 16

What are the stages of interphase?

Accepted Answer

A)  G0,G1,and G2 
B)  S1,S2,and G0 
C)  G0,G1,and S 
D)  S,G1,and G2 
A)  G0,G1,and G2 
B)  S1,S2,and G0 
C)  G0,G1,and S 
D)  S,G1,and G2

Question 17

A pool of cells is treated with a chemical that halts progress through the cell cycle.In which stage of the cell cycle would most cells be found?

Accepted Answer

A)  metaphase 
B)  interphase 
C)  anaphase 
D)  cytokinesis 
A)  metaphase 
B)  interphase 
C)  anaphase 
D)  cytokinesis

Which of the following statements about cell division is correct?

Explain which of the three cell division processes (mitosis,meiosis,binary fission)is most complex and summarize why it is necessary to promote genetic diversity and maintain a constant chromosome number in organisms.

Which of the following predicts a likely outcome of bypassing the G₂ checkpoint in the cell cycle?

When a germ cell has completed both rounds of meiosis,cells are created which are

According to the image below,during which phase of the cell cycle is the genetic material evenly partitioned between daughter cells?

The process of cell division is different for prokaryotic versus eukaryotic cells because

Gametes are produced by meiosis rather than mitosis because

When examining the rapidly dividing cells of a fish embryo,a researcher notices a cell that seems to contain two nuclei.The middle of the cell is pinched inward.This cell must be in ________ of mitosis.

All of the following contribute to genetic uniqueness EXCEPT

Which of the following is known to result from the disruption of mitosis and meiosis?

A cell containing 56 chromosomes is undergoing meiosis.Explain how chromosome number changes as the cells proceed through meiosis.

The circle near the center of the replicated chromosome below represents a

Which processes associated with meiosis ensure genetic diversity in offspring? Name two processes that promote variation and explain how they operate.

Which of the following is associated with mitosis?

Chromosomes decondense and nuclear envelopes form during the ________ portion of mitosis.

What are the stages of interphase?

A pool of cells is treated with a chemical that halts progress through the cell cycle.In which stage of the cell cycle would most cells be found?

The Nature of Science

Evaluating Scientific Claims

Chemistry of Life

Life Is Cellular

How Cells Work

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Bacteria and Archaea

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Exam 6: Cell Division

Which of the following statements about cell division is correct?

Explain which of the three cell division processes (mitosis,meiosis,binary fission)is most complex and summarize why it is necessary to promote genetic diversity and maintain a constant chromosome number in organisms.

Which of the following predicts a likely outcome of bypassing the G2 checkpoint in the cell cycle?

When a germ cell has completed both rounds of meiosis,cells are created which are

According to the image below,during which phase of the cell cycle is the genetic material evenly partitioned between daughter cells?

The process of cell division is different for prokaryotic versus eukaryotic cells because

Gametes are produced by meiosis rather than mitosis because

When examining the rapidly dividing cells of a fish embryo,a researcher notices a cell that seems to contain two nuclei.The middle of the cell is pinched inward.This cell must be in ________ of mitosis.

All of the following contribute to genetic uniqueness EXCEPT

Which of the following is known to result from the disruption of mitosis and meiosis?

A cell containing 56 chromosomes is undergoing meiosis.Explain how chromosome number changes as the cells proceed through meiosis.

The circle near the center of the replicated chromosome below represents a

Which processes associated with meiosis ensure genetic diversity in offspring? Name two processes that promote variation and explain how they operate.

Which of the following is associated with mitosis?

Chromosomes decondense and nuclear envelopes form during the ________ portion of mitosis.

What are the stages of interphase?

A pool of cells is treated with a chemical that halts progress through the cell cycle.In which stage of the cell cycle would most cells be found?

The Nature of Science

Evaluating Scientific Claims

Chemistry of Life

Life Is Cellular

How Cells Work

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Bacteria and Archaea

Plants,fungi,and Protists

Animals and Human Evolution

Filters

Which of the following predicts a likely outcome of bypassing the G₂ checkpoint in the cell cycle?