Question 1

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 crossover 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 crossover 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 2

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 3

Suppose that an organism has the same life strategy as a maple tree. When will the synaptonemal complex be observed?

Accepted Answer

A)  only in a unicellular haploid phase 
B)  in each generation 
C)  only in a multicellular haploid phase 
D)  only in alternating generations 
A)  only in a unicellular haploid phase 
B)  in each generation 
C)  only in a multicellular haploid phase 
D)  only in alternating generations

Question 4

Which chromosomal arrangements are responsible for independent assortment of the alleles of two genes?

Accepted Answer

A)  random partitioning of daughter cell chromosomes 
B)  random partitioning of paternal and maternal chromosomes 
C)  random partitioning of maternal chromosomes only 
D)  random partitioning of paternal chromosomes only 
A)  random partitioning of daughter cell chromosomes 
B)  random partitioning of paternal and maternal chromosomes 
C)  random partitioning of maternal chromosomes only 
D)  random partitioning of paternal chromosomes only

Question 5

Suppose that two strains of E. coli - strain a (bio- met- leu+ thr+ thi+) and strain b (bio+ met+ leu- thr- thi-) - conjugate. If the two strains are grown on minimal medium, what is the most likely genotype of their offspring?

Accepted Answer

A)  bio+ met- leu- thr- thi+ 
B)  bio+ met+ leu+ thr+ thi+ 
C)  bio+ met+ leu- thr- thi+ 
D)  bio- met- leu- thr- thi+ 
A)  bio+ met- leu- thr- thi+ 
B)  bio+ met+ leu+ thr+ thi+ 
C)  bio+ met+ leu- thr- thi+ 
D)  bio- met- leu- thr- thi+

Question 6

Crossing-over is limited to a single occurrence for a chromosome.

Accepted Answer

A) True 
 B)False

Question 7

"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)

Question 8

Match each term with its correct definition.
-sexual reproduction

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 crossover 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 crossover 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

Exam 8: Genetic Recombination

Match each term with its correct definition. -fertilization

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

Suppose that an organism has the same life strategy as a maple tree. When will the synaptonemal complex be observed?

Which chromosomal arrangements are responsible for independent assortment of the alleles of two genes?

Suppose that two strains of E. coli - strain a (bio- met- leu+ thr+ thi+) and strain b (bio+ met+ leu- thr- thi-) - conjugate. If the two strains are grown on minimal medium, what is the most likely genotype of their offspring?

Crossing-over is limited to a single occurrence for a chromosome.

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

Match each term with its correct definition. -sexual reproduction

Light and Life

The Cell: an Overview

Energy and Enzymes

Cell Membranes and Signaling

Cellular Respiration

Photosynthesis

Cell Cycles

The Chromosomal Basis of Mendelian Inheritance

Genetic Linkage, Sex-Linkage, and Other Non-Mendelian Inheritance Mechanisms

DNA Structure, Replication, and Repair

Gene Structure Expression, and Mutation

Regulation of Gene Expression

Dna Technologies

Genomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Speciation and Macroevolution

Systematics and Phylogenetics: Revealing the Tree of Life

Humans and Evolution

Defining Life and Its Origins

Viruses, Viroids, and Prions: Infectious Biological Particles

Bacteria and Archaea

Protists

Fungi

Plants

Animals

Conservation of Biodiversity

Population Ecology

Species Interactions and Community Ecology

Ecosystems

Animal Behaviour

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

Animal Nutrition

Gas Exchange: the Respiratory System

Internal Transport: the Circulatory System

Regulation of the Internal Environment: Water, Solutes, and Temperature

Control of Animal Processes: Endocrine Control

Animal Reproduction

Control of Animal Processes: Neural Control

Muscles, Skeletons, and Body Movements

Filters

Suppose that two strains of E. coli - strain a (bio^- met^- leu⁺ thr⁺ thi⁺) and strain b (bio⁺ met⁺ leu^- thr^- thi^-) - conjugate. If the two strains are grown on minimal medium, what is the most likely genotype of their offspring?

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