Question 1

Which phrase best describes a homologous chromosome pair?

Accepted Answer

A) two chromosomes that have the same genes in the same order, but have different alleles 
B) two chromosomes that have different genes in the same order, and possibly have different alleles of some genes 
C) two chromosomes that have the same alleles of the same genes in the same order 
D) two chromosomes that have different alleles of the same genes arranged in a different order 
A) two chromosomes that have the same genes in the same order, but have different alleles 
B) two chromosomes that have different genes in the same order, and possibly have different alleles of some genes 
C) two chromosomes that have the same alleles of the same genes in the same order 
D) two chromosomes that have different alleles of the same genes arranged in a different order

Question 2

"Met" refers to a gene that governs a cell's ability to synthesize methionine from inorganic precursors. What does the designation "met-" indicate?

Accepted Answer

A) that the allele is normal (i.e., wild type) 
B) that the bacterium is biologically active 
C) that the bacterium is biologically inactive 
D) that the allele is the mutant allele 
A) that the allele is normal (i.e., wild type) 
B) that the bacterium is biologically active 
C) that the bacterium is biologically inactive 
D) that the allele is the mutant allele

Question 3

How many recombination events result from cutting and pasting four DNA backbones?

Accepted Answer

A) four 
B) three 
C) two 
D) one 
A) four 
B) three 
C) two 
D) one

Question 4

Match each term with its correct definition.
-synapsis

Accepted Answer

A) cell division that is modified to generate haploid cells 
B) haploid products of meiosis 
C) matching of homologous pairs of chromosomes during prophase I 
D) term used to describe cells having two sets of chromosomes 
E) diploid body cells that do not undergo meiosis
F)term used to describe cells having a single set of chromosomes
G)life strategy that involves fusion of haploid gametes from two source organisms to form a diploid cell
H)another name for cross-over sites
I)variant of a particular gene having a slightly different DNA sequence than another variant of the same gene
J)diploid product of gamete fusion
K)process of gamete fusion 
A) cell division that is modified to generate haploid cells 
B) haploid products of meiosis 
C) matching of homologous pairs of chromosomes during prophase I 
D) term used to describe cells having two sets of chromosomes 
E) diploid body cells that do not undergo meiosis
F)term used to describe cells having a single set of chromosomes
G)life strategy that involves fusion of haploid gametes from two source organisms to form a diploid cell
H)another name for cross-over sites
I)variant of a particular gene having a slightly different DNA sequence than another variant of the same gene
J)diploid product of gamete fusion
K)process of gamete fusion

Question 5

What type of genetic recombination results from the mating of two strains of bacteria F+ and F-?

Accepted Answer

A) transposition 
B) plasmid genetic recombination 
C) conjugation 
D) histone genetic recombination 
A) transposition 
B) plasmid genetic recombination 
C) conjugation 
D) histone genetic recombination

Question 6

Identify each numbered part of the following illustration.    
-nuclear envelope

Accepted Answer

The answer of Identify each numbered part of the following...

Question 7

Identify each numbered part of the following illustration.    
-centriole

Accepted Answer

The answer of Identify each numbered part of the following...

Question 8

Which of the following genes are contained in bacterial insertion sequences?

Accepted Answer

A) recombinase 
B) tetracycline resistance gene 
C) ampicillin resistance gene 
D) transposase 
A) recombinase 
B) tetracycline resistance gene 
C) ampicillin resistance gene 
D) transposase

Question 9

Spore is another name for gamete.

Accepted Answer

A) True 
 B)False

Question 10

Which term refers to a virus in the lysogenic cycle that is fully integrated into the host genome?

Accepted Answer

A) virulent phage 
B) infectious phage 
C) tempered phage 
D) prophage 
A) virulent phage 
B) infectious phage 
C) tempered phage 
D) prophage

Question 11

"Thr" refers to a gene that governs a cell's ability to synthesize threonine from inorganic precursors. What does the designation "thr+" indicate?

Accepted Answer

A) that the bacterium is biologically inactive 
B) that the bacterium is biologically active 
C) that the allele is the mutant allele 
D) that the allele is normal (i.e., wild type) 
A) that the bacterium is biologically inactive 
B) that the bacterium is biologically active 
C) that the allele is the mutant allele 
D) that the allele is normal (i.e., wild type)

Question 12

Haploid cells have homologous chromosomes.

Accepted Answer

A) True 
 B)False

Question 13

Which genetic factor confers upon bacteria the ability to undergo conjugation?

Accepted Answer

A) the F factor 
B) the sex pilus 
C) the X factor 
D) the C factor 
A) the F factor 
B) the sex pilus 
C) the X factor 
D) the C factor

Question 14

Match each term with its correct definition.
-phage

Accepted Answer

A) movement of bacterial DNA from one cell to another inside a bacteriophage 
B) a virus 
C) particular segments of DNA that move from one place to another 
D) simplest TEs 
E) enzyme that catalyzes reactions to insert or remove TEs
F)DNA that has an inverted repeat sequence at each end
G)enzyme that uses an RNA template to make a DNA copy of the retrotransposon
H)transferring DNA using a virus 
A) movement of bacterial DNA from one cell to another inside a bacteriophage 
B) a virus 
C) particular segments of DNA that move from one place to another 
D) simplest TEs 
E) enzyme that catalyzes reactions to insert or remove TEs
F)DNA that has an inverted repeat sequence at each end
G)enzyme that uses an RNA template to make a DNA copy of the retrotransposon
H)transferring DNA using a virus

Question 15

Identify each numbered part of the following illustration.    
-chiasmata

Accepted Answer

The answer of Identify each numbered part of the following...

Question 16

When do homologous chromosomes undergo recombination?

Accepted Answer

A) during anaphase 
B) during prophase 
C) during telophase 
D) during metaphase 
A) during anaphase 
B) during prophase 
C) during telophase 
D) during metaphase

Question 17

Match each term with its correct definition.
-fertilization

Accepted Answer

A) cell division that is modified to generate haploid cells 
B) haploid products of meiosis 
C) matching of homologous pairs of chromosomes during prophase I 
D) term used to describe cells having two sets of chromosomes 
E) diploid body cells that do not undergo meiosis
F)term used to describe cells having a single set of chromosomes
G)life strategy that involves fusion of haploid gametes from two source organisms to form a diploid cell
H)another name for cross-over sites
I)variant of a particular gene having a slightly different DNA sequence than another variant of the same gene
J)diploid product of gamete fusion
K)process of gamete fusion 
A) cell division that is modified to generate haploid cells 
B) haploid products of meiosis 
C) matching of homologous pairs of chromosomes during prophase I 
D) term used to describe cells having two sets of chromosomes 
E) diploid body cells that do not undergo meiosis
F)term used to describe cells having a single set of chromosomes
G)life strategy that involves fusion of haploid gametes from two source organisms to form a diploid cell
H)another name for cross-over sites
I)variant of a particular gene having a slightly different DNA sequence than another variant of the same gene
J)diploid product of gamete fusion
K)process of gamete fusion

Question 18

What is the purpose of the sex pilus?

Accepted Answer

A) to form a gap junction and conjugate 
B) to allow transfer of gametes 
C) to facilitate DNA exchange 
D) to stabilize a network of bacterial cells 
A) to form a gap junction and conjugate 
B) to allow transfer of gametes 
C) to facilitate DNA exchange 
D) to stabilize a network of bacterial cells

Question 19

"Leu" refers to a gene that governs a cell's ability to synthesize leucine from inorganic precursors. What does the designation "leu-" indicate?

Accepted Answer

A) that the bacterium is biologically inactive 
B) that the allele is the mutant allele 
C) that the bacterium is biologically active 
D) that the allele is normal (i.e., wild type) 
A) that the bacterium is biologically inactive 
B) that the allele is the mutant allele 
C) that the bacterium is biologically active 
D) that the allele is normal (i.e., wild type)

Exam 9: Genetic Recombination

Which phrase best describes a homologous chromosome pair?

"Met" refers to a gene that governs a cell's ability to synthesize methionine from inorganic precursors. What does the designation "met-" indicate?

How many recombination events result from cutting and pasting four DNA backbones?

Match each term with its correct definition. -synapsis

What type of genetic recombination results from the mating of two strains of bacteria F+ and F-?

Identify each numbered part of the following illustration. -nuclear envelope

Identify each numbered part of the following illustration. -centriole

Which of the following genes are contained in bacterial insertion sequences?

Spore is another name for gamete.

Which term refers to a virus in the lysogenic cycle that is fully integrated into the host genome?

"Thr" refers to a gene that governs a cell's ability to synthesize threonine from inorganic precursors. What does the designation "thr+" indicate?

Haploid cells have homologous chromosomes.

Which genetic factor confers upon bacteria the ability to undergo conjugation?

Match each term with its correct definition. -phage

Identify each numbered part of the following illustration. -chiasmata

When do homologous chromosomes undergo recombination?

Match each term with its correct definition. -fertilization

What is the purpose of the sex pilus?

"Leu" refers to a gene that governs a cell's ability to synthesize leucine from inorganic precursors. What does the designation "leu-" indicate?

Light and Life

The Cell: an Overview

Defining Life and Its Origins

Energy and Enzymes

Cell Membranes and Signalling

Cellular Respiration

Photosynthesis

Cell Cycles

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Structure and Expression

Control of Gene Expression

Dna Technologies

Genomes and Proteomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Species and Macroevolution

Understanding the History of Life on Earth

Humans and Evolution

Bacteria and Archaea

Viruses, Viroids, and Prions: Infectious Biological Particles

Protists

Fungi

Plants

Diversity of Animals 1: Sponges, Radiata, Platyhelminthes, and Protostomes

Diversity of Animals 2: Deuterostomes: Vertebrates and Their Closest Relatives

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Conservation of Biodiversity

Putting Selection to Work

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Transport in Animals: the Circulatory System

Reproduction in Animals

Animal Development

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Integration

Muscles, Skeletons, and Body Movements

Animal Behaviour

Animal Nutrition

Gas Exchange: the Respiratory System

Regulating the Internal Environment

Defences Against Disease

Conservation and Evolutionary Physiology

Filters

"Met" refers to a gene that governs a cell's ability to synthesize methionine from inorganic precursors. What does the designation "met^-" indicate?

What type of genetic recombination results from the mating of two strains of bacteria F⁺ and F^-?

"Thr" refers to a gene that governs a cell's ability to synthesize threonine from inorganic precursors. What does the designation "thr⁺" indicate?

"Leu" refers to a gene that governs a cell's ability to synthesize leucine from inorganic precursors. What does the designation "leu^-" indicate?