Question 1

The distribution of mitochondria between the daughter cells during cytokinesis

Accepted Answer

A)  is random. 
B)  is directed by the mitotic spindle. 
C)  is directed by the centrioles. 
D)  results in the retention of mitochondria in the parent cell. 
E)  occurs only during meiosis. 
A)  is random. 
B)  is directed by the mitotic spindle. 
C)  is directed by the centrioles. 
D)  results in the retention of mitochondria in the parent cell. 
E)  occurs only during meiosis.

Question 2

The diploid number for Norway rats is 42.How many different types of gametes can be produced from meiosis in a diploid organism from independent assortment alone (i.e. ,no crossing over)?

Accepted Answer

A)  221 
B)  242 
C)  284 
D)  212 
E)  422 
A)  221 
B)  242 
C)  284 
D)  212 
E)  422

Question 3

The second division of meiosis

Accepted Answer

A)  returns the chromosome number before fertilization to diploid. 
B)  allows for crossing over and random distribution of chromosomes. 
C)  reduces cell size by dividing the cytoplasm in half. 
D)  prevents a doubling of chromosome copies at fertilization. 
E)  is required in order for fertilization to occur. 
A)  returns the chromosome number before fertilization to diploid. 
B)  allows for crossing over and random distribution of chromosomes. 
C)  reduces cell size by dividing the cytoplasm in half. 
D)  prevents a doubling of chromosome copies at fertilization. 
E)  is required in order for fertilization to occur.

Question 4

Which statement about meiosis and mitosis is true?

Accepted Answer

A)  DNA replication occurs only in mitosis. 
B)  DNA replication occurs only in meiosis. 
C)  The products of meiosis can be different from one another,while the products of mitosis are all the same (except for rare mutations). 
D)  The products of mitosis can be different from one another,while the products of meiosis are all the same (except for rare mutations). 
E)  Mitosis and meiosis are the same process. 
A)  DNA replication occurs only in mitosis. 
B)  DNA replication occurs only in meiosis. 
C)  The products of meiosis can be different from one another,while the products of mitosis are all the same (except for rare mutations). 
D)  The products of mitosis can be different from one another,while the products of meiosis are all the same (except for rare mutations). 
E)  Mitosis and meiosis are the same process.

Question 5

A triploid plant has

Accepted Answer

A)  one extra chromosome. 
B)  one extra set of chromosomes. 
C)  three chromosomes. 
D)  three times the chance of surviving that a monoploid has. 
E)  cells fused in sets of three. 
A)  one extra chromosome. 
B)  one extra set of chromosomes. 
C)  three chromosomes. 
D)  three times the chance of surviving that a monoploid has. 
E)  cells fused in sets of three.

Question 6

The number of chromosomes per nuclei is reduced to haploid during

Accepted Answer

A)  anaphase of mitosis and meiosis. 
B)  telophase I. 
C)  telophase II. 
D)  fertilization. 
E)  interphase. 
A)  anaphase of mitosis and meiosis. 
B)  telophase I. 
C)  telophase II. 
D)  fertilization. 
E)  interphase.

Question 7

One difference between mitosis and meiosis I is that

Accepted Answer

A)  homologous chromosome pairs synapse during mitosis. 
B)  chromosomes do not replicate in the interphase preceding meiosis. 
C)  homologous chromosome pairs synapse during meiosis but not during mitosis. 
D)  spindles composed of microtubules are not required during meiosis. 
E)  sister chromatids separate during meiosis but not during mitosis. 
A)  homologous chromosome pairs synapse during mitosis. 
B)  chromosomes do not replicate in the interphase preceding meiosis. 
C)  homologous chromosome pairs synapse during meiosis but not during mitosis. 
D)  spindles composed of microtubules are not required during meiosis. 
E)  sister chromatids separate during meiosis but not during mitosis.

Question 8

During meiosis,the sister chromatids separate during

Accepted Answer

A)  anaphase I. 
B)  anaphase II. 
C)  S phase. 
D)  synapsis. 
E)  telophase II. 
A)  anaphase I. 
B)  anaphase II. 
C)  S phase. 
D)  synapsis. 
E)  telophase II.

Question 9

A subset of cells in the intestinal epithelium divides continually in order to replace dead cells.A microscopic examination of this population of cells would show that most of them

Accepted Answer

A)  have condensed chromatin. 
B)  are in meiosis. 
C)  are in mitosis. 
D)  are in interphase. 
E)  are undergoing cytokinesis. 
A)  have condensed chromatin. 
B)  are in meiosis. 
C)  are in mitosis. 
D)  are in interphase. 
E)  are undergoing cytokinesis.

Question 10

The products of mitosis are

Accepted Answer

A)  one nucleus containing twice as much DNA as the parent nucleus. 
B)  two genetically identical cells. 
C)  four nuclei containing half as much DNA as the parent nucleus. 
D)  four genetically identical nuclei. 
E)  two genetically identical nuclei. 
A)  one nucleus containing twice as much DNA as the parent nucleus. 
B)  two genetically identical cells. 
C)  four nuclei containing half as much DNA as the parent nucleus. 
D)  four genetically identical nuclei. 
E)  two genetically identical nuclei.

Question 11

Which statement about sister chromatids is false?

Accepted Answer

A)  They arise by replication during S phase. 
B)  They separate from each other during each mitotic anaphase. 
C)  They usually contain identical versions of the same genetic information. 
D)  They separate from each other during meiosis I. 
E)  They are joined during meiotic prophase I and meiotic metaphase I at their common centromere. 
A)  They arise by replication during S phase. 
B)  They separate from each other during each mitotic anaphase. 
C)  They usually contain identical versions of the same genetic information. 
D)  They separate from each other during meiosis I. 
E)  They are joined during meiotic prophase I and meiotic metaphase I at their common centromere.

Question 12

When cyclin binds CDK,

Accepted Answer

A)  the cell transitions from G2 to S. 
B)  kinase activation occurs. 
C)  chromosomes condense. 
D)  the cell quickly enters M phase. 
E)  the cell undergoes apoptosis. 
A)  the cell transitions from G2 to S. 
B)  kinase activation occurs. 
C)  chromosomes condense. 
D)  the cell quickly enters M phase. 
E)  the cell undergoes apoptosis.

Question 13

During mitotic anaphase,chromosomes migrate

Accepted Answer

A)  from the poles of the cell toward the equatorial plate. 
B)  from the equatorial plate toward the poles. 
C)  toward the nuclear envelope. 
D)  along with their sister chromatids toward one pole. 
E)  along with the other member of the homologous pair toward the equatorial plate. 
A)  from the poles of the cell toward the equatorial plate. 
B)  from the equatorial plate toward the poles. 
C)  toward the nuclear envelope. 
D)  along with their sister chromatids toward one pole. 
E)  along with the other member of the homologous pair toward the equatorial plate.

Question 14

Which statement about necrosis is true?

Accepted Answer

A)  It requires ATP. 
B)  It does not cause inflammation. 
C)  It may occur when cells are damaged by toxins. 
D)  It produces nucleosome-sized pieces of chromatin. 
E)  It results in fragmentation of the cell. 
A)  It requires ATP. 
B)  It does not cause inflammation. 
C)  It may occur when cells are damaged by toxins. 
D)  It produces nucleosome-sized pieces of chromatin. 
E)  It results in fragmentation of the cell.

Question 15

Segregation of DNA occurs during

Accepted Answer

A)  G1 phase. 
B)  S phase. 
C)  G2 phase. 
D)  M phase. 
E)  prophase. 
A)  G1 phase. 
B)  S phase. 
C)  G2 phase. 
D)  M phase. 
E)  prophase.

Question 16

Knowledge of the cell cycle has led to improved means of treating cancer.The drug 5-fluorouracil,which blocks the synthesis of the nucleic acid thymine,inhibits initiation of the cell cycle stage

Accepted Answer

A)  G1. 
B)  G2. 
C)  S. 
D)  prophase. 
E)  metaphase. 
A)  G1. 
B)  G2. 
C)  S. 
D)  prophase. 
E)  metaphase.

Question 17

The total DNA content of each daughter cell is reduced during meiosis because

Accepted Answer

A)  chromosomes do not replicate during the interphase preceding meiosis I. 
B)  chromosomes do not replicate between meiosis I and II. 
C)  half of the chromosomes from each gamete are lost during fertilization. 
D)  sister chromatids separate during anaphase of meiosis I. 
E)  chromosome arms are lost during crossing over. 
A)  chromosomes do not replicate during the interphase preceding meiosis I. 
B)  chromosomes do not replicate between meiosis I and II. 
C)  half of the chromosomes from each gamete are lost during fertilization. 
D)  sister chromatids separate during anaphase of meiosis I. 
E)  chromosome arms are lost during crossing over.

Question 18

Which phase of the cell cycle is/are not part of interphase?

Accepted Answer

A)  M 
B)  S 
C)  G1 
D)  G2 
E)  Both a and b 
A)  M 
B)  S 
C)  G1 
D)  G2 
E)  Both a and b

Question 19

In which type of organism would you expect to find multicellular individuals with a ploidy value of "n"?

Accepted Answer

A)  Bread mold 
B)  Aspen trees 
C)  Rabbits 
D)  Brown algae 
E)  Lizards 
A)  Bread mold 
B)  Aspen trees 
C)  Rabbits 
D)  Brown algae 
E)  Lizards

Question 20

After the centromeres separate during mitosis,the chromatids,now called _______,move toward opposite poles of the spindle.

Accepted Answer

A)  centrosomes 
B)  kinetochores 
C)  half-spindles 
D)  asters 
E)  daughter chromosomes 
A)  centrosomes 
B)  kinetochores 
C)  half-spindles 
D)  asters 
E)  daughter chromosomes

Exam 7: The Cell Cycle and Cell Division

The distribution of mitochondria between the daughter cells during cytokinesis

The diploid number for Norway rats is 42.How many different types of gametes can be produced from meiosis in a diploid organism from independent assortment alone (i.e. ,no crossing over)?

The second division of meiosis

Which statement about meiosis and mitosis is true?

A triploid plant has

The number of chromosomes per nuclei is reduced to haploid during

One difference between mitosis and meiosis I is that

During meiosis,the sister chromatids separate during

A subset of cells in the intestinal epithelium divides continually in order to replace dead cells.A microscopic examination of this population of cells would show that most of them

The products of mitosis are

Which statement about sister chromatids is false?

When cyclin binds CDK,

During mitotic anaphase,chromosomes migrate

Which statement about necrosis is true?

Segregation of DNA occurs during

Knowledge of the cell cycle has led to improved means of treating cancer.The drug 5-fluorouracil,which blocks the synthesis of the nucleic acid thymine,inhibits initiation of the cell cycle stage

The total DNA content of each daughter cell is reduced during meiosis because

Which phase of the cell cycle is/are not part of interphase?

In which type of organism would you expect to find multicellular individuals with a ploidy value of "n"?

After the centromeres separate during mitosis,the chromatids,now called _______,move toward opposite poles of the spindle.

Introduction

The Chemistry and Energy of Life

Nucleic Acids, Proteins, and Enzymes

Cells: the Working Units of Life

Cell Membranes and Signaling

Pathways That Harvest and Store Chemical Energy

Inheritance, Genes, and Chromosomes

DNA and Its Role in Heredity

From Dna to Protein: Gene Expression

Regulation of Gene Expression

Genomes

Biotechnology

Genes, Development, and Evolution

Processes of Evolution

Reconstructing and Using Phylogenies

Speciation

The History of Life on Earth

Bacteria, Archaea, and Viruses

The Origin and Diversification of Eukaryotes

The Evolution of Plants

The Evolution and Diversity of Fungi

Animal Origins and Diversity

The Plant Body

Plant Nutrition and Transport

Plant Growth and Development

Reproduction of Flowering Plants

Plants in the Environment

Fundamentals of Animal Function

Nutrition and Digestion

Breathing

Circulation

Muscle and Movement

Neurons, Sense Organs, and Nervous Systems

Nervous and Endocrine Control

Water and Salts: Excretion

Animal Reproduction

Animal Development

Immunology: Animal Defense Systems

Animal Behavior

The Distribution of Earths Ecological Systems

Populations

Ecological and Evolutionary Consequences of Interactions Within and Among Species

Ecological Communities

The Global Ecosystem

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