Question 1

A nucleosome consists of DNA wrapped around scaffolding proteins.

Accepted Answer

A) True 
 B)False  False

Question 2

Which event occurs in prophase II?

Accepted Answer

A)  Disappearance of the spindle 
B)  Condensation of the chromatin into chromosomes 
C)  Formation of the chiasmata 
D)  Crossing over occurs. 
E)  Formation of the cleavage furrow 
A)  Disappearance of the spindle 
B)  Condensation of the chromatin into chromosomes 
C)  Formation of the chiasmata 
D)  Crossing over occurs. 
E)  Formation of the cleavage furrow B

Question 3

Match between columns
                        Premises: Chromosomes align at the cell's midplane.

Accepted Answer

The Answer of Prophase and Metaphase and Telophase and Anaphase is...

Question 4

Match between columns
                        Premises: Chromosomes decondense.

Accepted Answer

The Answer of Metaphase and Telophase and Anaphase and Prometaphase is...

Question 5

An animal zygote is a haploid cell.

Accepted Answer

A) True 
 B)False

Question 6

____ contain identical DNA sequences and are held together by ____ during mitosis.

Accepted Answer

A)  Daughter chromosomes; hydrogen bonding 
B)  Daughter chromosomes; ionic bonding 
C)  Sister chromatids; spindle fibers 
D)  Sister chromosomes; histone proteins 
E)  Sister chromatids; cohesin proteins 
A)  Daughter chromosomes; hydrogen bonding 
B)  Daughter chromosomes; ionic bonding 
C)  Sister chromatids; spindle fibers 
D)  Sister chromosomes; histone proteins 
E)  Sister chromatids; cohesin proteins

Question 7

Sketch the life cycle of a plant and label the ploidy of each stage. You may use n to represent the haploid number of chromosomes.

Accepted Answer

Concepts to Consider

Question 8

Why do the cells produced by meiosis undergo two nuclear divisions but only have a haploid number of chromosomes?

Accepted Answer

Concepts to Consider: The first nuclear

Question 9

List the stages in the eukaryotic cell cycle, and identify the principal events that occur during each stage.

Accepted Answer

The cell cycle consists of Interphase (c

Question 10

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 folded to fit inside a bacterial cell. 
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 folded to fit inside a bacterial cell.

Question 11

Figure 10-1 ​
 
​
In the accompanying figure, which combination of letters accurately represents two sister chromatids?

Accepted Answer

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

Question 12

What evolutionary advantage is provided by sexual reproduction?

Accepted Answer

A)  Increased genetic diversity 
B)  Generation of clones 
C)  Production of genetically identical offspring 
D)  Possibility of polyploidy in the progeny 
E)  Removal of all genetic mutations 
A)  Increased genetic diversity 
B)  Generation of clones 
C)  Production of genetically identical offspring 
D)  Possibility of polyploidy in the progeny 
E)  Removal of all genetic mutations

Question 13

Match between columns
                        Premises: Mitotic spindle forms.

Accepted Answer

The Answer of Prophase and Anaphase and Telophase and Prometaphase is...

Question 14

Homologous pairs of chromosomes separate during meiosis I.

Accepted Answer

A) True 
 B)False

Question 15

Figure 10-1 ​
 
​
Which phase of cell division is depicted in the accompanying figure?

Accepted Answer

A)  Prophase of mitosis 
B)  Metaphase of mitosis 
C)  Prophase I of meiosis 
D)  Prophase II of meiosis 
E)  Metaphase I of meiosis 
A)  Prophase of mitosis 
B)  Metaphase of mitosis 
C)  Prophase I of meiosis 
D)  Prophase II of meiosis 
E)  Metaphase I of meiosis

Question 16

Match between columns
                        Premises: Homologous chromosomes undergo synapsis.

Accepted Answer

The Answer of Metaphase I and Telophase II and Prophase is...

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

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 19

What is not a hallmark of prophase?

Accepted Answer

A)  Nuclear envelope is visible with the light microscope. 
B)  Nucleolus disappears. 
C)  Mitotic spindle is beginning to assemble. 
D)  Spindle fibers pull chromosomes to opposite sides of the cell. 
E)  Duplicated chromosomes become visible with the light microscope. 
A)  Nuclear envelope is visible with the light microscope. 
B)  Nucleolus disappears. 
C)  Mitotic spindle is beginning to assemble. 
D)  Spindle fibers pull chromosomes to opposite sides of the cell. 
E)  Duplicated chromosomes become visible with the light microscope.

Question 20

Eukaryotic chromosomes are composed of

Accepted Answer

A)  proteins only. 
B)  chromatin. 
C)  DNA only. 
D)  circular chromatin. 
E)  karyotypes. 
A)  proteins only. 
B)  chromatin. 
C)  DNA only. 
D)  circular chromatin. 
E)  karyotypes.

Exam 10: Chromosomes, Mitosis, and Meiosis

A nucleosome consists of DNA wrapped around scaffolding proteins.

Which event occurs in prophase II?

An animal zygote is a haploid cell.

____ contain identical DNA sequences and are held together by ____ during mitosis.

Sketch the life cycle of a plant and label the ploidy of each stage. You may use n to represent the haploid number of chromosomes.

Why do the cells produced by meiosis undergo two nuclear divisions but only have a haploid number of chromosomes?

List the stages in the eukaryotic cell cycle, and identify the principal events that occur during each stage.

Eukaryotic chromosomes consist of

Figure 10-1 ​ ​ In the accompanying figure, which combination of letters accurately represents two sister chromatids?

What evolutionary advantage is provided by sexual reproduction?

Homologous pairs of chromosomes separate during meiosis I.

Figure 10-1 ​ ​ Which phase of cell division is depicted in the accompanying figure?

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

Homologous chromosomes undergo synapsis during

What is not a hallmark of prophase?

Eukaryotic chromosomes are composed of

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

contain identical DNA sequences and are held together by during mitosis.

Figure 10-1 In the accompanying figure, which combination of letters accurately represents two sister chromatids?

Figure 10-1 Which phase of cell division is depicted in the accompanying figure?