Question 1

The kinetochore serves which of the following functions?

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 2

Homologous chromosomes undergo synapsis during:

Accepted Answer

A)  anaphase I. 
B)  prophase I. 
C)  anaphase II. 
D)  telophase II. 
E)  prophase II. 
A)  anaphase I. 
B)  prophase I. 
C)  anaphase II. 
D)  telophase II. 
E)  prophase II.

Question 3

Indicate the ploidy of each of the following cells:
A.
fungal spores
B.
sperm
C.
somatic cells
D.
cells of a flower petal

Accepted Answer

Concepts to Consider: Fungal s

Question 4

Match the stage of meiosis with the events that occur there:
a.prophase I
e.anaphase I
b.prophase II
f.anaphase II
c.metaphase I
g.telophase I
d.metaphase II
h.telophase II
-nuclear envelope forms around single-stranded chromosomes

Accepted Answer

The answer of Match the stage of meiosis with the...

Question 5

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 6

Most human somatic cells are:

Accepted Answer

A)  polyploid. 
B)  diploid. 
C)  aneuploid. 
D)  tetraploid. 
E)  haploid. 
A)  polyploid. 
B)  diploid. 
C)  aneuploid. 
D)  tetraploid. 
E)  haploid.

Question 7

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 8

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 9

Match the stage of meiosis with the events that occur there:
a.prophase I
e.anaphase I
b.prophase II
f.anaphase II
c.metaphase I
g.telophase I
d.metaphase II
h.telophase II
-sister chromatids separate and chromosomes move to opposite poles

Accepted Answer

The answer of Match the stage of meiosis with the...

Question 10

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 11

Draw two cells: one showing the arrangement of chromosomes at metaphase of mitosis, and the other showing the chromosomes at metaphase I of meiosis.What is the significance of this difference?

Accepted Answer

The drawing should resemble Fig.10-9a (f

Question 12

During which of the following stages of meiosis do the sister chromatids separate?

Accepted Answer

A)  metaphase I 
B)  anaphase I 
C)  metaphase II 
D)  anaphase II 
E)  telophase II 
A)  metaphase I 
B)  anaphase I 
C)  metaphase II 
D)  anaphase II 
E)  telophase II

Question 13

All of the following events occur during prometaphase EXCEPT:

Accepted Answer

A)  the nuclear envelope breaks down. 
B)  the nucleoli disappear. 
C)  the mitotic spindle is completely assembled. 
D)  the spindle fibers "capture" chromosomes. 
E)  the duplicated chromosomes become visible with the light microscope. 
A)  the nuclear envelope breaks down. 
B)  the nucleoli disappear. 
C)  the mitotic spindle is completely assembled. 
D)  the spindle fibers "capture" chromosomes. 
E)  the duplicated chromosomes become visible with the light microscope.

Question 14

What evolutionary advantage is provided by sexual reproduction?

Accepted Answer

A)  increased genetic diversity 
B)  making clones 
C)  making diploidy possible 
D)  making polyploidy possible 
E)  being able to work with chromosomes 
A)  increased genetic diversity 
B)  making clones 
C)  making diploidy possible 
D)  making polyploidy possible 
E)  being able to work with chromosomes

Question 15

A maternal homologue and a paternal homologue synapse to form:

Accepted Answer

A)  a tetrad. 
B)  a parental pair. 
C)  a paternal pair. 
D)  sister chromatids. 
E)  a maternal pair. 
A)  a tetrad. 
B)  a parental pair. 
C)  a paternal pair. 
D)  sister chromatids. 
E)  a maternal pair.

Question 16

Figure 10-1
Use the figure to answer the corresponding question(s).  
-Refer to Figure 10-1.Which of the following combinations of letters accurately represents two homologous chromatids?

Accepted Answer

A)  A and B 
B)  A and C 
C)  A and D 
D)  B and F 
E)  D and E 
A)  A and B 
B)  A and C 
C)  A and D 
D)  B and F 
E)  D and E

Question 17

Eukaryotic chromosomes consist of:

Accepted Answer

A)  circular DNA molecules complexed with positively charged nonhistone proteins. 
B)  circular DNA molecules complexed with negatively charged histone proteins. 
C)  linear DNA molecules complexed with positively charged histone proteins. 
D)  linear DNA molecules complexed with negatively charged histone proteins. 
E)  circular DNA molecules. 
A)  circular DNA molecules complexed with positively charged nonhistone proteins. 
B)  circular DNA molecules complexed with negatively charged histone proteins. 
C)  linear DNA molecules complexed with positively charged histone proteins. 
D)  linear DNA molecules complexed with negatively charged histone proteins. 
E)  circular DNA molecules.

Question 18

Generation time refers to:

Accepted Answer

A)  the number of years it takes for a generation to die. 
B)  the amount of time required to replicate the DNA in a cell. 
C)  the time it takes to complete one cell cycle. 
D)  the time required for an individual in a species to achieve sexual maturity. 
E)  the time it takes for a new mitotic spindle to form. 
A)  the number of years it takes for a generation to die. 
B)  the amount of time required to replicate the DNA in a cell. 
C)  the time it takes to complete one cell cycle. 
D)  the time required for an individual in a species to achieve sexual maturity. 
E)  the time it takes for a new mitotic spindle to form.

Question 19

Chromosomes are duplicated during __________ of the cell cycle.

Accepted Answer

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

Question 20

MATCHING
Match the stage of mitosis with the events that occur there.
a.metaphase
d.telophase
b.anaphase
e.prophase
c.prometaphase
-spindle microtubules attach to kinetochores

Accepted Answer

The answer of MATCHING
Match the stage of mitosis with the...

Exam 10: Chromosomes, Mitosis, and Meiosis

The kinetochore serves which of the following functions?

Homologous chromosomes undergo synapsis during:

Indicate the ploidy of each of the following cells: A. fungal spores B. sperm C. somatic cells D. cells of a flower petal

Match the stage of meiosis with the events that occur there: a.prophase I e.anaphase I b.prophase II f.anaphase II c.metaphase I g.telophase I d.metaphase II h.telophase II -nuclear envelope forms around single-stranded chromosomes

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

Most human somatic cells are:

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

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

Match the stage of meiosis with the events that occur there: a.prophase I e.anaphase I b.prophase II f.anaphase II c.metaphase I g.telophase I d.metaphase II h.telophase II -sister chromatids separate and chromosomes move to opposite poles

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

Draw two cells: one showing the arrangement of chromosomes at metaphase of mitosis, and the other showing the chromosomes at metaphase I of meiosis.What is the significance of this difference?

During which of the following stages of meiosis do the sister chromatids separate?

All of the following events occur during prometaphase EXCEPT:

What evolutionary advantage is provided by sexual reproduction?

A maternal homologue and a paternal homologue synapse to form:

Figure 10-1 Use the figure to answer the corresponding question(s). -Refer to Figure 10-1.Which of the following combinations of letters accurately represents two homologous chromatids?

Eukaryotic chromosomes consist of:

Generation time refers to:

Chromosomes are duplicated during __________ of the cell cycle.

MATCHING Match the stage of mitosis with the events that occur there. a.metaphase d.telophase b.anaphase e.prophase c.prometaphase -spindle microtubules attach to kinetochores

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.