Question 1

The sources of genetic variation during meiosis are:

Accepted Answer

A)  crossing-over and the random assortment of maternal and paternal chromosomes. 
B)  crossing-over and random pairing of tetrads. 
C)  random pairing of tetrads and mutations. 
D)  polyploidy and random pairing of tetrads. 
E)  random pairing of tetrads and random assortment of maternal and paternal chromosomes. 
A)  crossing-over and the random assortment of maternal and paternal chromosomes. 
B)  crossing-over and random pairing of tetrads. 
C)  random pairing of tetrads and mutations. 
D)  polyploidy and random pairing of tetrads. 
E)  random pairing of tetrads and random assortment of maternal and paternal chromosomes. A

Question 2

Nucleosomes are best described as:

Accepted Answer

A)  eukaryotic DNA associated with histone proteins. 
B)  prokaryotic DNA associated with nonhistone proteins. 
C)  eukaryotic DNA associated with nonhistone proteins. 
D)  prokaryotic DNA associated with histone proteins. 
E)  eukaryotic DNA associated with scaffolding proteins. 
A)  eukaryotic DNA associated with histone proteins. 
B)  prokaryotic DNA associated with nonhistone proteins. 
C)  eukaryotic DNA associated with nonhistone proteins. 
D)  prokaryotic DNA associated with histone proteins. 
E)  eukaryotic DNA associated with scaffolding proteins. A

Question 3

Figure 10-2
Use the figure to answer the corresponding question(s).  
-Refer to Figure 10-2.The process occurring at arrow 3 in the associated figure is:

Accepted Answer

A)  fertilization. 
B)  G1. 
C)  meiosis. 
D)  mitosis. 
E)  fusion. 
A)  fertilization. 
B)  G1. 
C)  meiosis. 
D)  mitosis. 
E)  fusion. C

Question 4

During prophase I of meiosis, homologous chromosomes lie side by side.This phenomeon is known as:

Accepted Answer

A)  chromatid pairing. 
B)  divalent formation. 
C)  tetrad formation. 
D)  paternal pairing. 
E)  parental pairing. 
A)  chromatid pairing. 
B)  divalent formation. 
C)  tetrad formation. 
D)  paternal pairing. 
E)  parental pairing.

Question 5

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
-tetrads line up on the cell equator

Accepted Answer

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

Question 6

Plant clones can be produced by:

Accepted Answer

A)  sexual reproduction. 
B)  fertilization. 
C)  gamete production. 
D)  asexual reproduction. 
E)  binary fission. 
A)  sexual reproduction. 
B)  fertilization. 
C)  gamete production. 
D)  asexual reproduction. 
E)  binary fission.

Question 7

Cytokinesis in animal cells involves contraction of a ring of __________ microfilaments.

Accepted Answer

A)  tubulin plus actin 
B)  actin plus myosin 
C)  cyclin plus myosin 
D)  keratin plus actin 
E)  cyclin plus actin 
A)  tubulin plus actin 
B)  actin plus myosin 
C)  cyclin plus myosin 
D)  keratin plus actin 
E)  cyclin plus actin

Question 8

Which of the following are NOT produced by meiosis?

Accepted Answer

A)  polar bodies 
B)  animal eggs 
C)  animal sperm 
D)  plant spores 
E)  zygotes. 
A)  polar bodies 
B)  animal eggs 
C)  animal sperm 
D)  plant spores 
E)  zygotes.

Question 9

Figure 10-2
Use the figure to answer the corresponding question(s).  
-Gametophyte plants produce gametes using:

Accepted Answer

A)  mitosis. 
B)  meiosis. 
C)  fertilization. 
D)  polyploidy. 
E)  sporogenesis. 
A)  mitosis. 
B)  meiosis. 
C)  fertilization. 
D)  polyploidy. 
E)  sporogenesis.

Question 10

Which of the following events does not occur in prophase II?

Accepted Answer

A)  formation of the spindle 
B)  condensation of chromatin into chromosomes 
C)  formation of chiasmata 
D)  removal of the nuclear membrane 
E)  sister chromatids become visible when viewed with the light microscope. 
A)  formation of the spindle 
B)  condensation of chromatin into chromosomes 
C)  formation of chiasmata 
D)  removal of the nuclear membrane 
E)  sister chromatids become visible when viewed with the light microscope.

Question 11

MATCHING
Match the stage of mitosis with the events that occur there.
a.metaphase
d.telophase
b.anaphase
e.prophase
c.prometaphase
-single-stranded chromosomes move to opposite poles

Accepted Answer

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

Question 12

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
-homologous chromosomes separate and move to opposite poles

Accepted Answer

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

Question 13

If meiosis did not occur in sexually reproducing organisms, then:

Accepted Answer

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

Question 14

Which of the following represents the overall sequence of events during mitosis?

Accepted Answer

A)  prophase - metaphase -anaphase -telophase 
B)  interphase - metaphase-anaphase -telophase 
C)  anaphase - telophase -metaphase-interphase 
D)  interphase - prophase - anaphase -metaphase 
E)  metaphase - telophase -anaphase - prophase 
A)  prophase - metaphase -anaphase -telophase 
B)  interphase - metaphase-anaphase -telophase 
C)  anaphase - telophase -metaphase-interphase 
D)  interphase - prophase - anaphase -metaphase 
E)  metaphase - telophase -anaphase - prophase

Question 15

A bacterial chromosome consists of:

Accepted Answer

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

Question 16

In animal cells, cytokinesis occurs via the formation of a cell plate.
__________________

Accepted Answer

A) True 
 B)False

Question 17

A cell is in metaphase if:

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 18

MATCHING
Match the stage of mitosis with the events that occur there.
a.metaphase
d.telophase
b.anaphase
e.prophase
c.prometaphase
-chromosomes decondense

Accepted Answer

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

Question 19

Figure 10-2
Use the figure to answer the corresponding question(s).  
-Refer to Figure 10-2.The chromosome complement of item 6 in the life cycle is:

Accepted Answer

A)  twenty. 
B)  haploid. 
C)  diploid. 
D)  forty-eight. 
E)  four. 
A)  twenty. 
B)  haploid. 
C)  diploid. 
D)  forty-eight. 
E)  four.

Question 20

A nucleosome consists of DNA wrapped around scaffolding proteins.
__________________

Accepted Answer

A) True 
 B)False

Exam 10: Chromosomes, Mitosis, and Meiosis

The sources of genetic variation during meiosis are:

Nucleosomes are best described as:

Figure 10-2 Use the figure to answer the corresponding question(s). -Refer to Figure 10-2.The process occurring at arrow 3 in the associated figure is:

During prophase I of meiosis, homologous chromosomes lie side by side.This phenomeon is known as:

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 -tetrads line up on the cell equator

Plant clones can be produced by:

Cytokinesis in animal cells involves contraction of a ring of __________ microfilaments.

Which of the following are NOT produced by meiosis?

Figure 10-2 Use the figure to answer the corresponding question(s). -Gametophyte plants produce gametes using:

Which of the following events does not occur in prophase II?

MATCHING Match the stage of mitosis with the events that occur there. a.metaphase d.telophase b.anaphase e.prophase c.prometaphase -single-stranded chromosomes move to opposite poles

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 -homologous chromosomes separate and move to opposite poles

If meiosis did not occur in sexually reproducing organisms, then:

Which of the following represents the overall sequence of events during mitosis?

A bacterial chromosome consists of:

In animal cells, cytokinesis occurs via the formation of a cell plate. __________________

A cell is in metaphase if:

MATCHING Match the stage of mitosis with the events that occur there. a.metaphase d.telophase b.anaphase e.prophase c.prometaphase -chromosomes decondense

Figure 10-2 Use the figure to answer the corresponding question(s). -Refer to Figure 10-2.The chromosome complement of item 6 in the life cycle is:

A nucleosome consists of DNA wrapped around scaffolding proteins. __________________

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

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