Question 1

The production of sterile offspring is an example of a prezygotic isolation mechanism.

Accepted Answer

A) True 
 B)False

Question 2

In the construction of a phylogenetic tree, a ________ considers the overall similarities among a group of species without trying to understand their evolutionary history, whereas a ________ considers the possible pathways of evolution to find the best possible tree.

Accepted Answer

A)  cladistic approach; phenetic approach 
B)  phenetic approach; cladistic approach 
C)  shared derived character; ancestral character 
D)  ancestral character; shared derived character 
A)  cladistic approach; phenetic approach 
B)  phenetic approach; cladistic approach 
C)  shared derived character; ancestral character 
D)  ancestral character; shared derived character

Question 3

In this phylogenetic tree, select the change that is a shared derived character for sequences A, B, and C.

Accepted Answer

A)  A6→T 
B)  T5→G 
C)  G2→A 
D)  A7→T 
A)  A6→T 
B)  T5→G 
C)  G2→A 
D)  A7→T

Question 4

Molecular paleontology ________.

Accepted Answer

A)  studies the morphology of extinct species 
B)  studies the DNA of extinct species 
C)  cannot use rRNA 
A)  studies the morphology of extinct species 
B)  studies the DNA of extinct species 
C)  cannot use rRNA

Question 5

Regions of a chromosome that contain groups of linked genes in several species are called ________.

Accepted Answer

A)  linkage groups 
B)  synteny groups 
C)  regression groups 
D)  homology groups 
A)  linkage groups 
B)  synteny groups 
C)  regression groups 
D)  homology groups

Question 6

Many species of cats (including big cats like lions, tigers, etc.) have tails. For cats, tails are likely to be a ________.

Accepted Answer

A)  synapomorphy 
B)  shared derived character 
C)  ancestral character 
D)  clade 
A)  synapomorphy 
B)  shared derived character 
C)  ancestral character 
D)  clade

Question 7

A gene family consists of two or more paralogs within the genome of a particular species.

Accepted Answer

A) True 
 B)False

Question 8

Select the prezygotic isolating mechanisms.

Accepted Answer

A)  Temporal isolation 
B)  Habitat isolation 
C)  Mechanical isolation 
D)  Hybrid inviability 
E)  Sexual isolation 
A)  Temporal isolation 
B)  Habitat isolation 
C)  Mechanical isolation 
D)  Hybrid inviability 
E)  Sexual isolation

Question 9

Neutral mutations can be acted on by natural selection

Accepted Answer

A) True 
 B)False

Question 10

The changing composition of a gene pool with regard to a particular allele over a measurable period of time is called ________.

Accepted Answer

A)  microevolution 
B)  macroevolution 
C)  molecular evolution 
D)  None of the answers are correct 
A)  microevolution 
B)  macroevolution 
C)  molecular evolution 
D)  None of the answers are correct

Question 11

Analysis of rRNA sequences led to the proposal of what main branches of life?

Accepted Answer

A)  Bacteria 
B)  Animalia 
C)  Archaea 
D)  Eukaryotes 
E)  Protists 
A)  Bacteria 
B)  Animalia 
C)  Archaea 
D)  Eukaryotes 
E)  Protists

Question 12

The formation of polyploids in plants is an example of which model of cladogenesis?

Accepted Answer

A)  Parapatric speciation 
B)  Allopatric speciation 
C)  Sympatric speciation 
A)  Parapatric speciation 
B)  Allopatric speciation 
C)  Sympatric speciation

Question 13

A graphic illustration of the relationships between species is called a phylogenetic tree.

Accepted Answer

A) True 
 B)False

Question 14

Based on rRNA analysis, all life on Earth can be grouped into how many major branches?

Accepted Answer

A)  1 
B)  3 
C)  5 
D)  6 
A)  1 
B)  3 
C)  5 
D)  6

Question 15

Microevolution is the term given to evolutionary changes that produce new species and groups of species.

Accepted Answer

A) True 
 B)False

Question 16

The biological species concept was introduced by

Accepted Answer

A)  Dobzhansky. 
B)  Darwin. 
C)  Mayr. 
D)  Mendel. 
E)  Wallace. 
A)  Dobzhansky. 
B)  Darwin. 
C)  Mayr. 
D)  Mendel. 
E)  Wallace.

Exam 29: Evolutionary Genetics

The production of sterile offspring is an example of a prezygotic isolation mechanism.

In the construction of a phylogenetic tree, a ________ considers the overall similarities among a group of species without trying to understand their evolutionary history, whereas a ________ considers the possible pathways of evolution to find the best possible tree.

In this phylogenetic tree, select the change that is a shared derived character for sequences A, B, and C.

Molecular paleontology ________.

Regions of a chromosome that contain groups of linked genes in several species are called ________.

Many species of cats (including big cats like lions, tigers, etc.) have tails. For cats, tails are likely to be a ________.

A gene family consists of two or more paralogs within the genome of a particular species.

Select the prezygotic isolating mechanisms.

Neutral mutations can be acted on by natural selection

The changing composition of a gene pool with regard to a particular allele over a measurable period of time is called ________.

Analysis of rRNA sequences led to the proposal of what main branches of life?

The formation of polyploids in plants is an example of which model of cladogenesis?

A graphic illustration of the relationships between species is called a phylogenetic tree.

Based on rRNA analysis, all life on Earth can be grouped into how many major branches?

Microevolution is the term given to evolutionary changes that produce new species and groups of species.

The biological species concept was introduced by

Overview of Genetics

Mendelian Inheritance

Chromosome Transmission During Cell Division and Sexual Reproduction

Extensions of Mendelian Inheritance

Non-Mendelian Inheritance

Genetic Linkage and Mapping in Eukaryotes

Genetic Transfer and Mapping in Bacteria

Variation in Chromosome Structure and Number

Molecular Structure of Dna and Rna

Chromosome Organization and Molecular Structure

Dna Replication

Gene Transcription and Rna Modification

Translation of Mrna

Gene Regulation in Bacteria

Gene Regulation in Eukaryotes I: Transcriptional and Translation Regulation

Gene Regulation in Eukaryotes Ii: Epigenetics

Non-Coding Rnas

Genetics of Viruses

Gene Mutation and Dna Repair

Recombination, Immunogenetics, and Transposition

Molecular Technologies

Biotechnology

Genomics I: Analysis of Dna

Genomics Ii: Functional Genomics, Proteomics, and Bioinformatics

Medical Genetics and Cancer

Developmental Genetics

Population Genetics

Complex and Quantitative Traits

Filters

In the construction of a phylogenetic tree, a considers the overall similarities among a group of species without trying to understand their evolutionary history, whereas a considers the possible pathways of evolution to find the best possible tree.