Question 1

From the figure above,one can deduce that larger genomes

Accepted Answer

A) tend to have a greater proportion of coding DNA than smaller genomes. 
B) tend to have a lesser proportion of coding DNA than smaller genomes. 
C) have more splice variants. 
D) code for more proteins. 
A) tend to have a greater proportion of coding DNA than smaller genomes. 
B) tend to have a lesser proportion of coding DNA than smaller genomes. 
C) have more splice variants. 
D) code for more proteins.

Question 2

The McDonald-Kreitman test compares substitution rates

Accepted Answer

A) between and within species. 
B) across two time scales. 
C) across genes. 
D) A and B 
E) All of the above 
A) between and within species. 
B) across two time scales. 
C) across genes. 
D) A and B 
E) All of the above

Question 3

A researcher collects a soil sample and sequences the entire genomes of two prokaryotes found in the sample.In these genomes,he finds identical prophage DNA located in different areas of the two genomes.Based on the similarity of the sequences of the prophages and their placement in the prokaryotes' genomes,what could he conclude about the relatedness of the two prokaryotes?

Accepted Answer

Prophages are viral genomes incorporated

Question 4

Eukaryotic genome size is

Accepted Answer

A) tightly correlated with organismal complexity. 
B) not well correlated with organismal complexity. 
C) largest in humans. 
D) typically smaller than prokaryotic genome size 
E) approximately the same in all eukaryotes. 
A) tightly correlated with organismal complexity. 
B) not well correlated with organismal complexity. 
C) largest in humans. 
D) typically smaller than prokaryotic genome size 
E) approximately the same in all eukaryotes.

Question 5

What does the figure above convey about the G-value paradox in prokaryotes?

Accepted Answer

A) The numbers of protein coding genes increase with genome size. 
B) There is no G-value paradox in prokaryotes. 
C) Bacteria are more complex than archaea. 
D) A and B 
E) None of the above 
A) The numbers of protein coding genes increase with genome size. 
B) There is no G-value paradox in prokaryotes. 
C) Bacteria are more complex than archaea. 
D) A and B 
E) None of the above

Question 6

Telomeres are necessary because

Accepted Answer

A) RNA needs a DNA template. 
B) Okazaki fragments need a binding region. 
C) prokaryotic genomes are circular. 
D) DNA polymerase only works in the 5¢ to 3¢ direction. 
E) chromosomes would grow during each replication. 
A) RNA needs a DNA template. 
B) Okazaki fragments need a binding region. 
C) prokaryotic genomes are circular. 
D) DNA polymerase only works in the 5¢ to 3¢ direction. 
E) chromosomes would grow during each replication.

Question 7

Transposons

Accepted Answer

A) move within a genome without making duplicates. 
B) move within a genome while making duplicates. 
C) use an RNA intermediate. 
D) use a DNA intermediate. 
E) All of the above 
A) move within a genome without making duplicates. 
B) move within a genome while making duplicates. 
C) use an RNA intermediate. 
D) use a DNA intermediate. 
E) All of the above

Question 8

The C-value paradox is

Accepted Answer

A) the lack of correlation between genome size with organismal complexity. 
B) resolved by the identification of noncoding DNA. 
C) resolved by the discovery of linkage disequilibrium. 
D) A and B 
E) All of the above 
A) the lack of correlation between genome size with organismal complexity. 
B) resolved by the identification of noncoding DNA. 
C) resolved by the discovery of linkage disequilibrium. 
D) A and B 
E) All of the above

Question 9

The exon theory of genes states that

Accepted Answer

A) genes consist solely of exons. 
B) introns are deleterious and are purged from the genome. 
C) introns lead to recombination errors. 
D) many current genes arose through the rearrangement of exons. 
E) introns disrupt protein structure. 
A) genes consist solely of exons. 
B) introns are deleterious and are purged from the genome. 
C) introns lead to recombination errors. 
D) many current genes arose through the rearrangement of exons. 
E) introns disrupt protein structure.

Question 10

GC content refers to

Accepted Answer

A) the G-value paradox. 
B) the C-value paradox. 
C) the fraction of G and C nucleotides in the genome. 
D) A and B 
E) All of the above 
A) the G-value paradox. 
B) the C-value paradox. 
C) the fraction of G and C nucleotides in the genome. 
D) A and B 
E) All of the above

Question 11

Prokaryotes may have

Accepted Answer

A) one single circular chromosome. 
B) many circular chromosomes. 
C) one single linear chromosome. 
D) A and B 
E) All of the above 
A) one single circular chromosome. 
B) many circular chromosomes. 
C) one single linear chromosome. 
D) A and B 
E) All of the above

Question 12

A limitation of examining Ka/Ks ratios is that they

Accepted Answer

A) are sensitive to demographic changes. 
B) cannot be used in introns. 
C) can only detect positive selection. 
D) cannot detect drift. 
E) None of the above 
A) are sensitive to demographic changes. 
B) cannot be used in introns. 
C) can only detect positive selection. 
D) cannot detect drift. 
E) None of the above

Question 13

What are transcription factors and how do they address the G-value paradox?

Accepted Answer

Transcription factors are proteins that

Question 14

From where is DNA acquired during conjugation?

Accepted Answer

A) The environment 
B) Bacteriophage 
C) Other bacteria 
D) All of the above 
E) None of the above 
A) The environment 
B) Bacteriophage 
C) Other bacteria 
D) All of the above 
E) None of the above

Question 15

Explain how horizontal gene transfer is different than sexual reproduction.

Accepted Answer

Horizontal gene transfer (HGT)

Question 16

The nematode,C.elegans,and humans have nearly identical numbers of protein coding genes,yet humans have much more complex organismal features.This is an example of

Accepted Answer

A) the C-value paradox. 
B) the G-value paradox. 
C) cell size paradox. 
D) linkage disequilibrium. 
E) None of the above 
A) the C-value paradox. 
B) the G-value paradox. 
C) cell size paradox. 
D) linkage disequilibrium. 
E) None of the above

Question 17

Describe a haplotype block.

Accepted Answer

A haplotype block is a region

Question 18

How does mutational bias influence GC content?

Accepted Answer

A) G is more likely to mutate to A. 
B) C is more likely to mutate to T. 
C) G is less likely to mutate to C. 
D) A is less likely to mutate to T. 
E) All of the above 
A) G is more likely to mutate to A. 
B) C is more likely to mutate to T. 
C) G is less likely to mutate to C. 
D) A is less likely to mutate to T. 
E) All of the above

From the figure above,one can deduce that larger genomes

The McDonald-Kreitman test compares substitution rates

Eukaryotic genome size is

What does the figure above convey about the G-value paradox in prokaryotes?

Telomeres are necessary because

Transposons

The C-value paradox is

The exon theory of genes states that

GC content refers to

Prokaryotes may have

A limitation of examining Ka/Ks ratios is that they

What are transcription factors and how do they address the G-value paradox?

From where is DNA acquired during conjugation?

Explain how horizontal gene transfer is different than sexual reproduction.

The nematode,C.elegans,and humans have nearly identical numbers of protein coding genes,yet humans have much more complex organismal features.This is an example of

Describe a haplotype block.

How does mutational bias influence GC content?

An Overview of Evolutionary Biology

Early Evolutionary Ideas and Darwins Insight

Natural Selection

Phylogeny and Evolutionary History

Inferring Phylogeny

Transmission Genetics and the Sources of Genetic Variation

The Genetics of Populations

Evolution in Finite Populations

Evolution at Multiple Loci

The Origin and Evolution of Early Life

Major Transitions

Evolution and Development

Species and Speciation

Extinction and Evolutionary Trends

The Evolution of Sex

Sexual Selection

The Evolution of Sociality

Coevolution

Evolution and Medicine

Filters

Exam 10: Genome Evolution

From the figure above,one can deduce that larger genomes

The McDonald-Kreitman test compares substitution rates

Eukaryotic genome size is

What does the figure above convey about the G-value paradox in prokaryotes?

Telomeres are necessary because

Transposons

The C-value paradox is

The exon theory of genes states that

GC content refers to

Prokaryotes may have

A limitation of examining Ka/Ks ratios is that they

What are transcription factors and how do they address the G-value paradox?

From where is DNA acquired during conjugation?

Explain how horizontal gene transfer is different than sexual reproduction.

The nematode,C.elegans,and humans have nearly identical numbers of protein coding genes,yet humans have much more complex organismal features.This is an example of

Describe a haplotype block.

How does mutational bias influence GC content?

An Overview of Evolutionary Biology

Early Evolutionary Ideas and Darwins Insight

Natural Selection

Phylogeny and Evolutionary History

Inferring Phylogeny

Transmission Genetics and the Sources of Genetic Variation

The Genetics of Populations

Evolution in Finite Populations

Evolution at Multiple Loci

The Origin and Evolution of Early Life

Major Transitions

Evolution and Development

Species and Speciation

Extinction and Evolutionary Trends

The Evolution of Sex

Sexual Selection

The Evolution of Sociality

Coevolution

Evolution and Medicine

Filters