Question 1

Describe the two primary uses of traits in the study of phylogeny.

Accepted Answer

Traits are used to infer the p

Question 2

By mapping a given trait on a phylogenetic tree that we have already constructed using other data, we can

Accepted Answer

A)  generate hypotheses about when and how this trait evolved. 
B)  create a pedigree for the trait. 
C)  test for polytomies in this trait. 
D)  confirm the presence or absence of this trait in species for which we are lacking observational data. 
A)  generate hypotheses about when and how this trait evolved. 
B)  create a pedigree for the trait. 
C)  test for polytomies in this trait. 
D)  confirm the presence or absence of this trait in species for which we are lacking observational data.

Question 3

Give an example of two groups of organisms that share a trait due to shared ancestry, and contrast this with an example of organisms that share a trait but not because of shared ancestry. What are each of these types of shared traits called? Explain the evolutionary processes that resulted in the similarities in each example.

Accepted Answer

Examples of traits will vary but should

Question 4

The unrooted phylogeny in the figure shows the relationships among proteobacteria. Which of the following would be true if the root were placed on the branch between nodes A and B?

Accepted Answer

A)  C. violaceum is more closely related to P. diminuta than it is to E. coli. 
B)  Z. ramigera is more closely related to E. coli than it is to C. violaceum. 
C)  P. diminuta is more closely related to Z. ramigera than it is to E. coli. 
D)  E. coli is more closely related to P. diminuta than it is to Z. ramigera. 
A)  C. violaceum is more closely related to P. diminuta than it is to E. coli. 
B)  Z. ramigera is more closely related to E. coli than it is to C. violaceum. 
C)  P. diminuta is more closely related to Z. ramigera than it is to E. coli. 
D)  E. coli is more closely related to P. diminuta than it is to Z. ramigera.

Question 5

Imagine that you are studying a coat color in mice, with two forms of a trait divergent evolution of coat color. Explain your answer.

Accepted Answer

In studying the coat color in mice with

Question 6

In the figure, what does the lower interior node in each figure represent?

Accepted Answer

A)  the individual that gave rise to birds and crocodilians 
B)  the most recent common ancestor of birds and crocodilians 
C)  the most recent common ancestor to all tetrapods 
D)  a population that would result from the hybridization of birds and crocodilians 
A)  the individual that gave rise to birds and crocodilians 
B)  the most recent common ancestor of birds and crocodilians 
C)  the most recent common ancestor to all tetrapods 
D)  a population that would result from the hybridization of birds and crocodilians

Question 7

The study of phylogeny predominantly aims to

Accepted Answer

A)  understand the branching relationships of populations as they give rise to descendant populations over time. 
B)  uncover evidence for natural selection. 
C)  provide a theoretical basis for Darwin's idea of a branching pattern of descent with modification. 
D)  classify organisms based on similarity. 
A)  understand the branching relationships of populations as they give rise to descendant populations over time. 
B)  uncover evidence for natural selection. 
C)  provide a theoretical basis for Darwin's idea of a branching pattern of descent with modification. 
D)  classify organisms based on similarity.

Describe the two primary uses of traits in the study of phylogeny.

By mapping a given trait on a phylogenetic tree that we have already constructed using other data, we can

The unrooted phylogeny in the figure shows the relationships among proteobacteria. Which of the following would be true if the root were placed on the branch between nodes A and B?

Imagine that you are studying a coat color in mice, with two forms of a trait divergent evolution of coat color. Explain your answer.

In the figure, what does the lower interior node in each figure represent?

The study of phylogeny predominantly aims to

An Overview of Evolutionary Biology

Early Evolutionary Ideas and Darwin S Insight

Natural Selection

Inferring Phylogeny

Transmission Genetics and the Sources of Genetic Variation

The Genetics of Populations

Evolution in Finite Populations

Evolution at Multiple Loci

Genome Evolution

The Origin and Evolution of Early Life

Major Transitions

Evolution and Development

Species and Speciation

Extinction and Evolutionary Trends

The Evolution of Sex

The Evolution of Sociality

Coevolution

Human Evolution

Evolution and Medicine

Filters

Exam 4: Phylogeny and Evolutionary History

Describe the two primary uses of traits in the study of phylogeny.

By mapping a given trait on a phylogenetic tree that we have already constructed using other data, we can

The unrooted phylogeny in the figure shows the relationships among proteobacteria. Which of the following would be true if the root were placed on the branch between nodes A and B?

Imagine that you are studying a coat color in mice, with two forms of a trait divergent evolution of coat color. Explain your answer.

In the figure, what does the lower interior node in each figure represent?

The study of phylogeny predominantly aims to

An Overview of Evolutionary Biology

Early Evolutionary Ideas and Darwin S Insight

Natural Selection

Inferring Phylogeny

Transmission Genetics and the Sources of Genetic Variation

The Genetics of Populations

Evolution in Finite Populations

Evolution at Multiple Loci

Genome Evolution

The Origin and Evolution of Early Life

Major Transitions

Evolution and Development

Species and Speciation

Extinction and Evolutionary Trends

The Evolution of Sex

The Evolution of Sociality

Coevolution

Human Evolution

Evolution and Medicine

Filters