Question 1

For each animal cell that begins oogenesis, the number of ova produced is four . 
__________________

Accepted Answer

A) True 
 B)False

Question 2

List the stages in the eukaryotic cell cycle and identify the principal events characteristic of each stage.

Accepted Answer

The cell cycle consists of Interphase (c

Question 3

A bacterial chromosome consists of a:

Accepted Answer

A)  linear DNA molecule many times larger than the cell. 
B)  circular DNA molecule many times larger than the cell. 
C)  circular DNA molecule smaller than the cell. 
D)  linear DNA molecule smaller than the cell. 
E)  linear or circular DNA molecule smaller than the cell. 
A)  linear DNA molecule many times larger than the cell. 
B)  circular DNA molecule many times larger than the cell. 
C)  circular DNA molecule smaller than the cell. 
D)  linear DNA molecule smaller than the cell. 
E)  linear or circular DNA molecule smaller than the cell.

Question 4

Draw a duplicated chromosome. Now, label each part of the chromosome with both its function and its identity.

Accepted Answer

The drawing should resemble th

Question 5

Plant hormones known as ____ stimulate mitosis.

Accepted Answer

A)  scaffolding proteins 
B)  growth factors 
C)  cytokinins 
D)  cyclins 
E)  cohesins 
A)  scaffolding proteins 
B)  growth factors 
C)  cytokinins 
D)  cyclins 
E)  cohesins

Question 6

Match between columns
                        Premises: mitotic spindle forms
sister chromatids separate at their centromeres
cytokinesis generally begins
chromosomes align at the cell's midplane
spindle microtubules attach to kinetochores
nuclear envelope fragments
chromosomes decondense
chromatin condenses

Accepted Answer

The Answer of metaphase and prophase and anaphase and prometaphase is...

Question 7

An animal with a diploid number of 36 chromosomes will have ____ chromosomes in its gametes and ____ chromosomes in its somatic cells.

Accepted Answer

A)  18; 18 
B)  18; 36 
C)  36; 18 
D)  36; 36 
E)  36; 72 
A)  18; 18 
B)  18; 36 
C)  36; 18 
D)  36; 36 
E)  36; 72

Question 8

When is a cell in metaphase?

Accepted Answer

A)  The chromosomes are visible as threadlike structures. 
B)  The nuclear envelope is clearly visible. 
C)  The chromosomes are aligned at the midplane of the cell. 
D)  The chromosome are separated into distinct groups at opposite poles of the cell. 
E)  Cytokinesis is occurring. 
A)  The chromosomes are visible as threadlike structures. 
B)  The nuclear envelope is clearly visible. 
C)  The chromosomes are aligned at the midplane of the cell. 
D)  The chromosome are separated into distinct groups at opposite poles of the cell. 
E)  Cytokinesis is occurring.

Question 9

How is it possible for the cells produced by meiosis to have undergone two nuclear divisions but have a haploid number of chromosomes?

Accepted Answer

Concepts to Consider: This is possible b

Question 10

Compare and contrast the general processes of asexual and sexual reproduction.

Accepted Answer

Both processes involve the formation of

Question 11

What is the function of kinetochores?

Accepted Answer

A)  Kinetochores anchor spindle fibers to the centrioles. 
B)  Kinetochores are the site of DNA synthesis. 
C)  Kinetochores regulate the length of the cell cycle. 
D)  Kinetochores attach to microtubules during mitosis. 
E)  Kinetochores are involved in cytokinesis. 
A)  Kinetochores anchor spindle fibers to the centrioles. 
B)  Kinetochores are the site of DNA synthesis. 
C)  Kinetochores regulate the length of the cell cycle. 
D)  Kinetochores attach to microtubules during mitosis. 
E)  Kinetochores are involved in cytokinesis.

Question 12

A cell is dividing by binary fission. What can you conclude?

Accepted Answer

A)  Mitosis has taken place without cytokinesis. 
B)  Homologous chromosomes have already paired. 
C)  The cyclin-Cdk complex is no longer phosphorylating enzymes. 
D)  The cell cycle is out of control. 
E)  The cell is prokaryotic. 
A)  Mitosis has taken place without cytokinesis. 
B)  Homologous chromosomes have already paired. 
C)  The cyclin-Cdk complex is no longer phosphorylating enzymes. 
D)  The cell cycle is out of control. 
E)  The cell is prokaryotic.

Question 13

What would happen if meiosis did not occur in sexually reproducing organisms?

Accepted Answer

A)  The growth of the zygote would be halted. 
B)  Mitosis would be sufficient to produce haploid gametes. 
C)  The gametes would remain haploid. 
D)  The chromosome number would double in each generation. 
E)  The eggs would be haploid, but the sperm would be diploid. 
A)  The growth of the zygote would be halted. 
B)  Mitosis would be sufficient to produce haploid gametes. 
C)  The gametes would remain haploid. 
D)  The chromosome number would double in each generation. 
E)  The eggs would be haploid, but the sperm would be diploid.

Question 14

____ organized on chromosomes carry the information that controls the functions of the cell.

Accepted Answer

A)  Proteins 
B)  Nucleosomes 
C)  Asters 
D)  Genes 
E)  Histones 
A)  Proteins 
B)  Nucleosomes 
C)  Asters 
D)  Genes 
E)  Histones

Question 15

Once nerve cells become mature, they do not typically undergo cell division. Based on your knowledge of the cell cycle, you might predict that mature nerve cells become arrested in the ____ of the cell cycle.

Accepted Answer

A)  G0 phase 
B)  S phase 
C)  prophase 
D)  G1 phase 
E)  G2 phase 
A)  G0 phase 
B)  S phase 
C)  prophase 
D)  G1 phase 
E)  G2 phase

Question 16

In the cell cycle, DNA is replicated during the G 2 phase. 
__________________

Accepted Answer

A) True 
 B)False

Question 17

Cytokinesis in plant cells occurs via the formation of a(n):

Accepted Answer

A)  aster. 
B)  mitotic spindle. 
C)  Golgi complex. 
D)  cell wall. 
E)  cell plate. 
A)  aster. 
B)  mitotic spindle. 
C)  Golgi complex. 
D)  cell wall. 
E)  cell plate.

Question 18

At the completion of oogenesis, ____ are produced.

Accepted Answer

A)  male gametes 
B)  four sperm cells 
C)  four egg cells 
D)  one egg cell and three polar bodies 
E)  haploid spores 
A)  male gametes 
B)  four sperm cells 
C)  four egg cells 
D)  one egg cell and three polar bodies 
E)  haploid spores

Question 19

The M phase of the cell cycle involves two main processes:

Accepted Answer

A)  mitosis and cytokinesis. 
B)  meiosis I and meiosis II. 
C)  homologous pairing and crossing over. 
D)  interphase and mitosis. 
E)  mitosis and meiosis. 
A)  mitosis and cytokinesis. 
B)  meiosis I and meiosis II. 
C)  homologous pairing and crossing over. 
D)  interphase and mitosis. 
E)  mitosis and meiosis.

Question 20

The function of nucleosomes is to:

Accepted Answer

A)  prevent DNA strands from tangling. 
B)  help DNA replicate. 
C)  make RNA synthesis possible. 
D)  prevent RNA from tangling with DNA during transcription. 
E)  prevent histones from tangling. 
A)  prevent DNA strands from tangling. 
B)  help DNA replicate. 
C)  make RNA synthesis possible. 
D)  prevent RNA from tangling with DNA during transcription. 
E)  prevent histones from tangling.

Exam 10: Chromosomes, Mitosis, and Meiosis

For each animal cell that begins oogenesis, the number of ova produced is four . __________________

List the stages in the eukaryotic cell cycle and identify the principal events characteristic of each stage.

A bacterial chromosome consists of a:

Draw a duplicated chromosome. Now, label each part of the chromosome with both its function and its identity.

Plant hormones known as ____ stimulate mitosis.

An animal with a diploid number of 36 chromosomes will have ____ chromosomes in its gametes and ____ chromosomes in its somatic cells.

When is a cell in metaphase?

How is it possible for the cells produced by meiosis to have undergone two nuclear divisions but have a haploid number of chromosomes?

Compare and contrast the general processes of asexual and sexual reproduction.

What is the function of kinetochores?

A cell is dividing by binary fission. What can you conclude?

What would happen if meiosis did not occur in sexually reproducing organisms?

____ organized on chromosomes carry the information that controls the functions of the cell.

Once nerve cells become mature, they do not typically undergo cell division. Based on your knowledge of the cell cycle, you might predict that mature nerve cells become arrested in the ____ of the cell cycle.

In the cell cycle, DNA is replicated during the G 2 phase. __________________

Cytokinesis in plant cells occurs via the formation of a(n):

At the completion of oogenesis, ____ are produced.

The M phase of the cell cycle involves two main processes:

The function of nucleosomes is to:

A View of Life

Atoms and Molecules the Chemical Basis of Life

The Chemistry of Life Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp Energy-Releasing Pathways

Photosynthesis Capturing Light Energy

The Basic Principles of Heredity

Dna the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure Growth and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function an Introduction

Protection Support and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

An animal with a diploid number of 36 chromosomes will have chromosomes in its gametes and chromosomes in its somatic cells.

In the cell cycle, DNA is replicated during the G ₂ phase. __________________