Question 1

Match the term to the correct description.
-Spindle microtubules attach to each sister chromatid as the nuclear envelope breaks up.

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 A

Question 2

During meiosis II,____.

Accepted Answer

A)  cytokinesis results in the formation of a total of two cells 
B)  sister chromatids of each chromosome are separated from each other 
C)  homologous chromosomes pair up 
D)  homologous chromosomes separate 
E)  sister chromatids exchange parts 
A)  cytokinesis results in the formation of a total of two cells 
B)  sister chromatids of each chromosome are separated from each other 
C)  homologous chromosomes pair up 
D)  homologous chromosomes separate 
E)  sister chromatids exchange parts B

Question 3

All of the microtubules are the same length,and homologous chromosomes are aligned midway between the spindle poles at ____.

Accepted Answer

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

Question 4

Sexual reproduction _____________________.

Accepted Answer

A)  leads to uniform characteristics within a population 
B)  results in new combinations of genetic traits 
C)  creates genetic clones 
D)  requires less tissue differentiation than asexual reproduction 
E)  produces genetic clones and requires less tissue differentiation than asexual reproduction 
A)  leads to uniform characteristics within a population 
B)  results in new combinations of genetic traits 
C)  creates genetic clones 
D)  requires less tissue differentiation than asexual reproduction 
E)  produces genetic clones and requires less tissue differentiation than asexual reproduction

Question 5

Which of the following is TRUE at the end of telophase I in corn (2n = 20)?

Accepted Answer

A)  Each cell has 20 chromosomes. 
B)  Each chromosome is paired with its homologue. 
C)  Centromeres connect homologous chromosomes. 
D)  Each cell is diploid. 
E)  Centromeres connect sister chromatids. 
A)  Each cell has 20 chromosomes. 
B)  Each chromosome is paired with its homologue. 
C)  Centromeres connect homologous chromosomes. 
D)  Each cell is diploid. 
E)  Centromeres connect sister chromatids.

Question 6

In sexual reproducers,meiosis gives rise to _____________.

Accepted Answer

A)  diploid gametes 
B)  haploid gametes 
C)  triploid gametes 
D)  haploid germ cells 
E)  diploid germ cells 
A)  diploid gametes 
B)  haploid gametes 
C)  triploid gametes 
D)  haploid germ cells 
E)  diploid germ cells

Question 7

During prophase II,____.

Accepted Answer

A)  a new spindle forms 
B)  crossing over occurs 
C)  chromosomes are single-stranded 
D)  the cell is diploid 
E)  the nuclear envelope re-forms 
A)  a new spindle forms 
B)  crossing over occurs 
C)  chromosomes are single-stranded 
D)  the cell is diploid 
E)  the nuclear envelope re-forms

Question 8

If meiosis did not precede fertilization,what would happen to the chromosome number after each generation?

Accepted Answer

A)  It would be half of the parents' chromosome number. 
B)  It would be two times the parents' chromosome number. 
C)  It would be four times the parents' chromosome number. 
D)  It would be eight times the parents' chromosome number. 
E)  It would remain the same. 
A)  It would be half of the parents' chromosome number. 
B)  It would be two times the parents' chromosome number. 
C)  It would be four times the parents' chromosome number. 
D)  It would be eight times the parents' chromosome number. 
E)  It would remain the same.

Question 9

Crossing over _________________________.

Accepted Answer

A)  occurs during mitosis 
B)  involves centrioles 
C)  involves breakages and exchanges between sister chromatids 
D)  results in new combinations of alleles being channeled into the daughter cells 
E)  only occurs in animal cells. 
A)  occurs during mitosis 
B)  involves centrioles 
C)  involves breakages and exchanges between sister chromatids 
D)  results in new combinations of alleles being channeled into the daughter cells 
E)  only occurs in animal cells.

Question 10

__________ are different forms of the same gene.

Accepted Answer

The answer of __________ are different forms of the same...

Question 11

The production of which cell type requires a different nuclear division mechanism that halves the chromosome number?

Accepted Answer

A)  Somatic cells 
B)  Kidney cells 
C)  Germ cells 
D)  Brain cells 
E)  Lymphatic cells 
A)  Somatic cells 
B)  Kidney cells 
C)  Germ cells 
D)  Brain cells 
E)  Lymphatic cells

Question 12

Which of the following occur in telophase I of meiosis?

Accepted Answer

A)  Nuclear envelope formation 
B)  Pairing of homologues 
C)  Formation of a bipolar spindle 
D)  Crossing over 
E)  Condensation of chromosomes 
A)  Nuclear envelope formation 
B)  Pairing of homologues 
C)  Formation of a bipolar spindle 
D)  Crossing over 
E)  Condensation of chromosomes

Question 13

In which of the following processes do the chromosome and its homologous partner exchange corresponding pieces of DNA?

Accepted Answer

A)  Crossing over 
B)  Gametes 
C)  Alleles 
D)  Haploid 
E)  Germ cell 
A)  Crossing over 
B)  Gametes 
C)  Alleles 
D)  Haploid 
E)  Germ cell

Question 14

Crossing over ___________________.

Accepted Answer

A)  increases variability in gametes 
B)  happens only once per homologous pair 
C)  occurs between sister chromatids 
D)  prevents genetic recombination 
E)  is followed immediately by separation of the chromatids 
A)  increases variability in gametes 
B)  happens only once per homologous pair 
C)  occurs between sister chromatids 
D)  prevents genetic recombination 
E)  is followed immediately by separation of the chromatids

Question 15

Some of the stages of meiosis are listed below. For the following statements, select the best choice of these stages.
-Pairing of homologues occurs during 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 16

All of the following statements are true regarding mitosis and meiosis II EXCEPT:

Accepted Answer

A)  The earliest eukaryotes were almost always single-celled and haploid, and they produced by mitosis. 
B)  Mitosis evolved later, from meiosis. 
C)  By mitosis and cytoplasmic division, one cell becomes two new cells. 
D)  The outcomes of mitosis and meiosis differ. 
E)  The molecular machinery of mitosis became remodeled into meiosis. 
A)  The earliest eukaryotes were almost always single-celled and haploid, and they produced by mitosis. 
B)  Mitosis evolved later, from meiosis. 
C)  By mitosis and cytoplasmic division, one cell becomes two new cells. 
D)  The outcomes of mitosis and meiosis differ. 
E)  The molecular machinery of mitosis became remodeled into meiosis.

Question 17

A diploid organism has ten homologous chromosome pairs.Disregarding crossing over,how many genetically different gametes are possible?

Accepted Answer

A)  100 
B)  240 
C)  480 
D)  1024 
E)  2048 
A)  100 
B)  240 
C)  480 
D)  1024 
E)  2048

Question 18

Some of the stages of meiosis are listed below. For the following statements, select the best choice of these stages.
-Following this phase,each individual cell is haploid.

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 19

Anaphase _______________________.

Accepted Answer

A)  involves the lining up of the chromosomes across the equatorial plate. 
B)  is the same in mitosis and meiosis I and II. 
C)  is initiated when the chromosomes begin to move apart 
D)  results in an unequal distribution of chromosomes to the resulting cells 
E)  occurs after telophase 
A)  involves the lining up of the chromosomes across the equatorial plate. 
B)  is the same in mitosis and meiosis I and II. 
C)  is initiated when the chromosomes begin to move apart 
D)  results in an unequal distribution of chromosomes to the resulting cells 
E)  occurs after telophase

Question 20

Pairs of maternal and paternal chromosomes line up between the two spindle poles during _______________.

Accepted Answer

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

Exam 12: Meiosis and Sexual Reproduction

Match the term to the correct description. -Spindle microtubules attach to each sister chromatid as the nuclear envelope breaks up.

During meiosis II,____.

All of the microtubules are the same length,and homologous chromosomes are aligned midway between the spindle poles at ____.

Sexual reproduction _____________________.

Which of the following is TRUE at the end of telophase I in corn (2n = 20)?

In sexual reproducers,meiosis gives rise to _____________.

During prophase II,____.

If meiosis did not precede fertilization,what would happen to the chromosome number after each generation?

Crossing over _________________________.

__________ are different forms of the same gene.

The production of which cell type requires a different nuclear division mechanism that halves the chromosome number?

Which of the following occur in telophase I of meiosis?

In which of the following processes do the chromosome and its homologous partner exchange corresponding pieces of DNA?

Crossing over ___________________.

Some of the stages of meiosis are listed below. For the following statements, select the best choice of these stages. -Pairing of homologues occurs during this stage.

All of the following statements are true regarding mitosis and meiosis II EXCEPT:

A diploid organism has ten homologous chromosome pairs.Disregarding crossing over,how many genetically different gametes are possible?

Some of the stages of meiosis are listed below. For the following statements, select the best choice of these stages. -Following this phase,each individual cell is haploid.

Anaphase _______________________.

Pairs of maternal and paternal chromosomes line up between the two spindle poles during _______________.

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

Filters