Question 1

Crossing over is facilitated by a ____ orientation between homologous chromosomes.

Accepted Answer

A)  tightly angled 
B)  separated, perpendicular 
C)  tight, perpendicular 
D)  separated, parallel 
E)  tight, parallel 
A)  tightly angled 
B)  separated, perpendicular 
C)  tight, perpendicular 
D)  separated, parallel 
E)  tight, parallel

Question 2

Homologous chromosomes become attached to either ____ in prophase I.

Accepted Answer

A)  sister 
B)  spindle pole 
C)  nucleus 
D)  chromosome 
E)  chromatid 
A)  sister 
B)  spindle pole 
C)  nucleus 
D)  chromosome 
E)  chromatid

Question 3

Figure 12.5
  
-The accompanying figure illustrates ____.

Accepted Answer

A)  anaphase I 
B)  metaphase I 
C)  metaphase II 
D)  crossing over 
E)  migration 
A)  anaphase I 
B)  metaphase I 
C)  metaphase II 
D)  crossing over 
E)  migration

Question 4

Gamete formation results in __________________________.

Accepted Answer

A)  offspring that are genetic clones of the parent 
B)  the pairing of homologous chromosomes 
C)  offspring that are genetically distinct from each other 
D)  the fusion of gametes. 
E)  asexual reproduction 
A)  offspring that are genetic clones of the parent 
B)  the pairing of homologous chromosomes 
C)  offspring that are genetically distinct from each other 
D)  the fusion of gametes. 
E)  asexual reproduction

Question 5

Chromatids are ____________________.

Accepted Answer

A)  attached at the centriole. 
B)  a pair of chromosomes, one from the mother and one from the father 
C)  attached to the nuclear envelope 
D)  identical before and after crossing over occurs. 
E)  identical until crossing over occurs 
A)  attached at the centriole. 
B)  a pair of chromosomes, one from the mother and one from the father 
C)  attached to the nuclear envelope 
D)  identical before and after crossing over occurs. 
E)  identical until crossing over occurs

Question 6

Some of the stages of meiosis are listed below. For the following statements, select the best choice of these stages.
-New genetic combinations are present after this stage.

Accepted Answer

A) Prophase I 
B) Metaphase II 
C) Anaphase I 
D) Anaphase II 
E) Telophase I 
A) Prophase I 
B) Metaphase II 
C) Anaphase I 
D) Anaphase II 
E) Telophase I

Question 7

Some of the stages of meiosis are listed below. For the following statements, select the best choice of these stages.
-By the end of this phase,a nuclear envelope forms around each set of haploid chromosomes.

Accepted Answer

A) Prophase I 
B) Metaphase II 
C) Anaphase I 
D) Anaphase II 
E) Telophase I 
A) Prophase I 
B) Metaphase II 
C) Anaphase I 
D) Anaphase II 
E) Telophase I

Question 8

Match the term to the correct description.
-A new nuclear envelope forms around each set of chromosomes,so four haploid (n)nuclei form.

Accepted Answer

A) Prophase II 
B) Metaphase I 
C) Telophase II 
D) Meiosis II 
A) Prophase II 
B) Metaphase I 
C) Telophase II 
D) Meiosis II

Question 9

Genetic diversity arises as a consequence of ________,which produce(s)different alleles of a gene.

Accepted Answer

A)  crossing over 
B)  chromosome segregation 
C)  gene swapping 
D)  gene splicing 
E)  mutations 
A)  crossing over 
B)  chromosome segregation 
C)  gene swapping 
D)  gene splicing 
E)  mutations

Question 10

Some of the stages of meiosis are listed below. For the following statements, select the best choice of these stages.
-During this stage,the sister chromatids begin to separate.

Accepted Answer

A) Prophase I 
B) Metaphase II 
C) Anaphase I 
D) Anaphase II 
E) Telophase I 
A) Prophase I 
B) Metaphase II 
C) Anaphase I 
D) Anaphase II 
E) Telophase I

Question 11

In both mitosis and meiosis II,____________.

Accepted Answer

A)  the cells double in number, and the chromosomes in product cells also double in number 
B)  the cells quadruple in number, and the chromosomes are reduced by half in each cell 
C)  the cells double in number, and the number of chromosomes in each cell remains the same 
D)  the cells quadruple in number, and the number of chromosomes in each cell remains the same 
E)  the cells double in number, and the chromosomes are reduced by half in each cell 
A)  the cells double in number, and the chromosomes in product cells also double in number 
B)  the cells quadruple in number, and the chromosomes are reduced by half in each cell 
C)  the cells double in number, and the number of chromosomes in each cell remains the same 
D)  the cells quadruple in number, and the number of chromosomes in each cell remains the same 
E)  the cells double in number, and the chromosomes are reduced by half in each cell

Question 12

Match the term to the correct description.
-This process is most similar to mitosis.

Accepted Answer

A) Prophase II 
B) Metaphase I 
C) Telophase II 
D) Meiosis II 
A) Prophase II 
B) Metaphase I 
C) Telophase II 
D) Meiosis II

Question 13

The process of chromosome segregation begins at which phase?

Accepted Answer

A)  Anaphase I 
B)  Telophase I 
C)  Metaphase I 
D)  Prophase I 
E)  Meiosis II 
A)  Anaphase I 
B)  Telophase I 
C)  Metaphase I 
D)  Prophase I 
E)  Meiosis II

Question 14

If a child more strongly resembles one parent's physical traits than the other parent's,the explanation could be due to chromosome movements during ________________.

Accepted Answer

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

Question 15

Some of the stages of meiosis are listed below. For the following statements, select the best choice of these stages.
-During this phase,homologues separate.

Accepted Answer

A) Prophase I 
B) Metaphase II 
C) Anaphase I 
D) Anaphase II 
E) Telophase I 
A) Prophase I 
B) Metaphase II 
C) Anaphase I 
D) Anaphase II 
E) Telophase I

Question 16

Duplicated chromosomes linked together at their centromeres at the beginning of meiosis are appropriately called what kind of chromatids?

Accepted Answer

A)  Mother 
B)  Parallel 
C)  Sister 
D)  Homogenous 
E)  Haploid 
A)  Mother 
B)  Parallel 
C)  Sister 
D)  Homogenous 
E)  Haploid

Question 17

Many of the molecules that actively maintain the integrity of a cell's chromosomes,particularly during DNA replication and mitosis,are involved in crossing over during ____ of meiosis.

Accepted Answer

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

Question 18

During ____,microtubules fasten the cell's chromosomes to the spindle poles.

Accepted Answer

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

Question 19

The essence of meiosis is that __________________________________.

Accepted Answer

A)  one gamete receives the maternal chromosomes, and the other gamete receives the paternal chromosomes 
B)  diploid gametes are formed 
C)  gametes are formed after one cell division 
D)  diploid spores are formed 
E)  haploid gametes are formed 
A)  one gamete receives the maternal chromosomes, and the other gamete receives the paternal chromosomes 
B)  diploid gametes are formed 
C)  gametes are formed after one cell division 
D)  diploid spores are formed 
E)  haploid gametes are formed

Exam 12: Meiosis and Sexual Reproduction

Crossing over is facilitated by a ____ orientation between homologous chromosomes.

Homologous chromosomes become attached to either ____ in prophase I.

Figure 12.5 -The accompanying figure illustrates ____.

Gamete formation results in __________________________.

Chromatids are ____________________.

Some of the stages of meiosis are listed below. For the following statements, select the best choice of these stages. -New genetic combinations are present after this stage.

Some of the stages of meiosis are listed below. For the following statements, select the best choice of these stages. -By the end of this phase,a nuclear envelope forms around each set of haploid chromosomes.

Match the term to the correct description. -A new nuclear envelope forms around each set of chromosomes,so four haploid (n)nuclei form.

Genetic diversity arises as a consequence of ________,which produce(s)different alleles of a gene.

Some of the stages of meiosis are listed below. For the following statements, select the best choice of these stages. -During this stage,the sister chromatids begin to separate.

In both mitosis and meiosis II,____________.

Match the term to the correct description. -This process is most similar to mitosis.

The process of chromosome segregation begins at which phase?

If a child more strongly resembles one parent's physical traits than the other parent's,the explanation could be due to chromosome movements during ________________.

Some of the stages of meiosis are listed below. For the following statements, select the best choice of these stages. -During this phase,homologues separate.

Duplicated chromosomes linked together at their centromeres at the beginning of meiosis are appropriately called what kind of chromatids?

Many of the molecules that actively maintain the integrity of a cell's chromosomes,particularly during DNA replication and mitosis,are involved in crossing over during ____ of meiosis.

During ____,microtubules fasten the cell's chromosomes to the spindle poles.

The essence of meiosis is that __________________________________.

Invitation to Biology

Life's Chemical Bases

Molecules of Life

Cell Structure

Ground Rules of Metabolism

Where it Starts—Photosynthesis

How Cells Release Chemical Energy

DNA Structure and Function

From DNA to Protein

Control of Gene Expression

How Cells Reproduce

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizing Information about Species

Life's Origin and Early Evolution

Viruses, Bacteria, and Archaea

Protists: The Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution: The Invertebrates

Animal Evolution: The Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive System

Animal Development

Animal Behavior

Population Ecology

Community Ecology

Ecosystems

The Biosphere

Human Impacts on the Biosphere

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