Question 1

Which of the following terms represents homologous genes that are found in different species?

Accepted Answer

A)  Paralogs 
B)  Orthologs 
C)  Gene families 
D)  None of the answers are correct 
A)  Paralogs 
B)  Orthologs 
C)  Gene families 
D)  None of the answers are correct B

Question 2

Which concept of speciation postulates that similar organisms will have overlapping needs in the environment?

Accepted Answer

A)  Ecological 
B)  Reproductive 
C)  Dualogical 
D)  Phylogenetic 
E)  Evolutionary 
A)  Ecological 
B)  Reproductive 
C)  Dualogical 
D)  Phylogenetic 
E)  Evolutionary A

Question 3

Who was the first to propose that species were the result of isolating mechanisms?

Accepted Answer

A)  Darwin 
B)  Wallace 
C)  Dobzhansky 
D)  Morgan 
A)  Darwin 
B)  Wallace 
C)  Dobzhansky 
D)  Morgan C

Question 4

The biological species concept was introduced by what individual?

Accepted Answer

A)  Dobzhansky 
B)  Darwin 
C)  Mayr 
D)  Paterson 
E)  Wallace 
A)  Dobzhansky 
B)  Darwin 
C)  Mayr 
D)  Paterson 
E)  Wallace

Question 5

The concept of adaptive peaks to symbolically represent selection of genotypes was first introduced by .

Accepted Answer

A)  Dobzhansky 
B)  Darwin 
C)  Mayr 
D)  Wright 
E)  Wallace 
A)  Dobzhansky 
B)  Darwin 
C)  Mayr 
D)  Wright 
E)  Wallace

Question 6

Hybrid zones are a characteristic of this model.

Accepted Answer

A)  Parapatric speciation 
B)  Allopatric speciation 
C)  Sympatric speciation 
D)  All of the answers are correct 
A)  Parapatric speciation 
B)  Allopatric speciation 
C)  Sympatric speciation 
D)  All of the answers are correct

Question 7

At the microevolutionary level, natural selection is based on genetic differences that give an individual
a selective advantage.

Accepted Answer

A) True 
 B)False

Question 8

Homologous genes are derived from the same ancestral gene.

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

Which of the following can be used to compare species at the molecular level?

Accepted Answer

A)  Direct DNA sequencing 
B)  Restriction mapping 
C)  Immunological studies 
D)  Protein comparisons 
E)  All of the answers are correct 
A)  Direct DNA sequencing 
B)  Restriction mapping 
C)  Immunological studies 
D)  Protein comparisons 
E)  All of the answers are correct

Question 11

Founder effect is an example of this.

Accepted Answer

A)  Parapatric speciation 
B)  Allopatric speciation 
C)  Sympatric speciation 
D)  All of the answers are correct 
A)  Parapatric speciation 
B)  Allopatric speciation 
C)  Sympatric speciation 
D)  All of the answers are correct

Question 12

Which of the following is NOT one of the major branches of life based on rRNA studies?

Accepted Answer

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

Question 13

How does the species recognition concept differ from the biological species concept?

Accepted Answer

A)  Reproductive isolation does not play a role in the species recognition concept 
B)  Sexual recognition plays acts as the primary force for speciation 
C)  The sizes of the groups of interbreeding individuals are different 
D)  They don't differ at all 
A)  Reproductive isolation does not play a role in the species recognition concept 
B)  Sexual recognition plays acts as the primary force for speciation 
C)  The sizes of the groups of interbreeding individuals are different 
D)  They don't differ at all

Question 14

Which of the following is not a prezygotic isolating mechanism?

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 15

Occurs due to geographic separation of a population.

Accepted Answer

A)  Parapatric speciation 
B)  Allopatric speciation 
C)  Sympatric speciation 
D)  All of the answers are correct 
A)  Parapatric speciation 
B)  Allopatric speciation 
C)  Sympatric speciation 
D)  All of the answers are correct

Question 16

Researchers who study molecular evolution often analyze DNA sequences using computer programs
which identify homologous sequences.

Accepted Answer

A) True 
 B)False

Question 17

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 18

When members of a species occupy the same habitat.

Accepted Answer

A)  Parapatric speciation 
B)  Allopatric speciation 
C)  Sympatric speciation 
D)  All of the answers are correct 
A)  Parapatric speciation 
B)  Allopatric speciation 
C)  Sympatric speciation 
D)  All of the answers are correct

Question 19

Orthologous genes may form gene families in a species.

Accepted Answer

A) True 
 B)False

Question 20

Non-Darwinian evolution is based on nonneutral mutations.

Accepted Answer

A) True 
 B)False

Exam 26: Evolutionary Genetics

Which of the following terms represents homologous genes that are found in different species?

Which concept of speciation postulates that similar organisms will have overlapping needs in the environment?

Who was the first to propose that species were the result of isolating mechanisms?

The biological species concept was introduced by what individual?

The concept of adaptive peaks to symbolically represent selection of genotypes was first introduced by .

Hybrid zones are a characteristic of this model.

At the microevolutionary level, natural selection is based on genetic differences that give an individual a selective advantage.

Homologous genes are derived from the same ancestral gene.

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

Which of the following can be used to compare species at the molecular level?

Founder effect is an example of this.

Which of the following is NOT one of the major branches of life based on rRNA studies?

How does the species recognition concept differ from the biological species concept?

Which of the following is not a prezygotic isolating mechanism?

Occurs due to geographic separation of a population.

Researchers who study molecular evolution often analyze DNA sequences using computer programs which identify homologous sequences.

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

When members of a species occupy the same habitat.

Orthologous genes may form gene families in a species.

Non-Darwinian evolution is based on nonneutral mutations.

Overview of Genetics

Mendelian Inheritance

Reproduction and Chromosome Transmission

Extensions of Mendelian Inheritance

Non-Mendelian Inheritance

Genetic Linkage and Mapping in Eukaryotes

Genetic Transfer and Mapping in Bacteria and

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 and Bacteriophages

Gene Regulation in Eukaryotes

Gene Mutation and Dna Repair

Recombination and Transposition at the Molecular

Recombinant Dna Technology

Biotechnology

Genomics I: Analysis of Dna

Genomics II: Functional Genomics, Proteomics, and

Medical Genetics and Cancer

Developmental Genetics

Population Genetics

Quantitative Genetics

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