Question 1

Humans evolved from chimpanzees about 6 billion years ago.

Accepted Answer

A) True 
 B)False  False

Question 2

Strong positive selection often leads to fixation.

Accepted Answer

A) True 
 B)False  True

Question 3

Androgen receptor genes in humans and primates contain an enhancer not found in the mouse version of the same gene.

Accepted Answer

A) True 
 B)False  False

Question 4

A diagram depicting the evolutionary history of a gene is called a

Accepted Answer

A)  node. 
B)  branch diagram. 
C)  phylogenetic tree. 
D)  molecular clock. 
E)  pedigree. 
A)  node. 
B)  branch diagram. 
C)  phylogenetic tree. 
D)  molecular clock. 
E)  pedigree.

Question 5

Two hypothetical populations of animals exist: one is immense,covering a large continent,and the other rather small,which occupies an area the size of Chicago,IL.Predict the effect of each population's size on its genetic drift.

Accepted Answer

The smaller population is more likely to

Question 6

Catastrophic evolution has occurred a number of times during the Earth's history and has resulted in drastic changes in species numbers and dominance.If a large asteroid struck the earth today,what would be the effects of an oceanic impact and what might be the consequences?

Accepted Answer

An asteroid impact into the sea would dr

Question 7

How could you calculate the rate of evolution used in a molecular clock?

Accepted Answer

Align amino acid or DNA sequences of gen

Question 8

The genomes of humans and chimpanzees are 99 percent similar;however,many evolutionary biologists believe that most of the phenotypic differences between the two species involve

Accepted Answer

A)  whole genome duplication and polyploidization 
B)  changes in DNA regulatory and developmental protein factors 
C)  appearance of thousands of novel proteins 
D)  changes primarily in coding regions 
E)  new metabolic pathways 
A)  whole genome duplication and polyploidization 
B)  changes in DNA regulatory and developmental protein factors 
C)  appearance of thousands of novel proteins 
D)  changes primarily in coding regions 
E)  new metabolic pathways

Question 9

Phylogenetic trees have nodes and branches;branches represent taxonomic units while nodes represent the relationship of these units.

Accepted Answer

A) True 
 B)False

Question 10

Hox proteins have in common the functional capacity to

Accepted Answer

A)  transcribe target genes. 
B)  reduce gene expression in developmental genes. 
C)  act as DNA-binding transcription factors. 
D)  transpose as a group. 
E)  function as epistatic regulators of 3' Hox genes. 
A)  transcribe target genes. 
B)  reduce gene expression in developmental genes. 
C)  act as DNA-binding transcription factors. 
D)  transpose as a group. 
E)  function as epistatic regulators of 3' Hox genes.

Question 11

Duplications increase genome size and occur through transposition and unequal crossing-over.

Accepted Answer

A) True 
 B)False

Question 12

Punctuated equilibrium of evolution is the tendency of evolution to proceed through long periods of stasis followed by short explosive periods of change.

Accepted Answer

A) True 
 B)False

Question 13

Nucleotide or amino acid substitutions that have no apparent effect on an organism's phenotype,function,or development are considered _______________________ mutations.

Accepted Answer

A)  neutral 
B)  conservative 
C)  advantageous 
D)  non-coding 
E)  reverse 
A)  neutral 
B)  conservative 
C)  advantageous 
D)  non-coding 
E)  reverse

Question 14

LINE,SINE,and retroviral DNA sequences are sometimes termed

Accepted Answer

A)  "selfish" DNA. 
B)  selectively neutral. 
C)  middle repetitive-DNA sequences. 
D)  unique-sequence DNA. 
E)  "useless" DNA. 
A)  "selfish" DNA. 
B)  selectively neutral. 
C)  middle repetitive-DNA sequences. 
D)  unique-sequence DNA. 
E)  "useless" DNA.

Question 15

Telomeric repeated DNA sequences contain a hexomeric repeating unit containing a _______________ sequence motif.

Accepted Answer

A)  TTAGGG 
B)  GGGAAA 
C)  TTTAGG 
D)  TTTGGG 
E)  TGATGC 
A)  TTAGGG 
B)  GGGAAA 
C)  TTTAGG 
D)  TTTGGG 
E)  TGATGC

Question 16

SINE elements are evolutionarily related to

Accepted Answer

A)  cDNA sequences. 
B)  tRNA sequences. 
C)  snRNP RNA species. 
D)  rRNA. 
E)  mRNA. 
A)  cDNA sequences. 
B)  tRNA sequences. 
C)  snRNP RNA species. 
D)  rRNA. 
E)  mRNA.

Question 17

What are three features of the Burgess Shale fossils?

Accepted Answer

The fossils have a great variety of basi

Question 18

The β-globin gene superfamily has three major components located on three separate chromosomes in humans.They are the β-globin gene family,the ______________________ gene family,and the myoglobin gene.

Accepted Answer

A)  α-globin 
B)  Hba-ps4 
C)  gamma globulin 
D)  delta globin 
E)  leghemoglobin 
A)  α-globin 
B)  Hba-ps4 
C)  gamma globulin 
D)  delta globin 
E)  leghemoglobin

Question 19

The mass extinction that led to the dinosaurs' demise around 65 million years ago is thought by many to be the result of a large asteroid impact near present day

Accepted Answer

A)  Iceland. 
B)  Hawaii. 
C)  Siberia. 
D)  Manitoba. 
E)  Yucatan. 
A)  Iceland. 
B)  Hawaii. 
C)  Siberia. 
D)  Manitoba. 
E)  Yucatan.

Question 20

Species-specific differences in phenotype are most likely due to differences in gene expression rather than mutations within genes.

Accepted Answer

A) True 
 B)False

Exam 12: Chromosomal Rearrangements and Changes in Chromosome Number

Humans evolved from chimpanzees about 6 billion years ago.

Strong positive selection often leads to fixation.

Androgen receptor genes in humans and primates contain an enhancer not found in the mouse version of the same gene.

A diagram depicting the evolutionary history of a gene is called a

Two hypothetical populations of animals exist: one is immense,covering a large continent,and the other rather small,which occupies an area the size of Chicago,IL.Predict the effect of each population's size on its genetic drift.

Catastrophic evolution has occurred a number of times during the Earth's history and has resulted in drastic changes in species numbers and dominance.If a large asteroid struck the earth today,what would be the effects of an oceanic impact and what might be the consequences?

How could you calculate the rate of evolution used in a molecular clock?

The genomes of humans and chimpanzees are 99 percent similar;however,many evolutionary biologists believe that most of the phenotypic differences between the two species involve

Phylogenetic trees have nodes and branches;branches represent taxonomic units while nodes represent the relationship of these units.

Hox proteins have in common the functional capacity to

Duplications increase genome size and occur through transposition and unequal crossing-over.

Punctuated equilibrium of evolution is the tendency of evolution to proceed through long periods of stasis followed by short explosive periods of change.

Nucleotide or amino acid substitutions that have no apparent effect on an organism's phenotype,function,or development are considered _______________________ mutations.

LINE,SINE,and retroviral DNA sequences are sometimes termed

Telomeric repeated DNA sequences contain a hexomeric repeating unit containing a _______________ sequence motif.

SINE elements are evolutionarily related to

What are three features of the Burgess Shale fossils?

The β-globin gene superfamily has three major components located on three separate chromosomes in humans.They are the β-globin gene family,the ______________________ gene family,and the myoglobin gene.

The mass extinction that led to the dinosaurs' demise around 65 million years ago is thought by many to be the result of a large asteroid impact near present day

Species-specific differences in phenotype are most likely due to differences in gene expression rather than mutations within genes.

Mendels Principles of Heredity

Extensions to Mendels Laws

The Chromosome Theory of Inheritance

Linkage, Recombination, and the Mapping of Genes on Chromosomes

Dna Structure, Replication, and Recombination

Anatomy and Function of a Gene: Dissection Through Mutation

Gene Expression: the Flow of Information From Dna to Rna to Protein

Digital Analysis of Genomes

Genome Annotation

Analyzing Genomic Variation

The Eukaryotic Chromosome

Bacterial Genetics

Organellar Inheritance

Gene Regulation in Prokaryotes

Gene Regulation in Eukaryotes

Manipulating the Genomes of Eukaryotes

The Genetic Analysis of Development

The Genetics of Cancer

Variation and Selection in Populations

Genetics of Complex Traits

Exploring Synthetic Biology: Concepts, Techniques, and Applications

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