Question 1

Trans-acting regulatory elements

Accepted Answer

A)  are typically adjacent to genes they regulate. 
B)  are typically far away from genes they regulate. 
C)  include transcription factors. 
D)  a and c 
E)  b and c 
A)  are typically adjacent to genes they regulate. 
B)  are typically far away from genes they regulate. 
C)  include transcription factors. 
D)  a and c 
E)  b and c E

Question 2

Weight, because it can vary among individuals over a range of values, is an example of a

Accepted Answer

A)  recessive trait. 
B)  dominant trait. 
C)  quantitative trait. 
D)  polyphenic trait. 
A)  recessive trait. 
B)  dominant trait. 
C)  quantitative trait. 
D)  polyphenic trait. C

Question 3

Genetic recombination occurs during meiosis when

Accepted Answer

A)  genetic material is duplicated. 
B)  chromosomes are paired. 
C)  sister chromatids are segregated. 
D)  haploid gametes are formed. 
A)  genetic material is duplicated. 
B)  chromosomes are paired. 
C)  sister chromatids are segregated. 
D)  haploid gametes are formed. B

Question 4

Michael Lynch and his colleagues demonstrated in yeast that mutations occur rarely-in fact, a single yeast cell may not experience a single point mutation in its genome. How can we reconcile the low rate of mutation with the fact that mutation is the engine that drives evolution?

Accepted Answer

A: The apparent paradox between the low

Question 5

The number of possible combinations of paternal and maternal chromosomes is

Accepted Answer

A)  2. 
B)  23. 
C)  223. 
D)  2 × 23. 
A)  2. 
B)  23. 
C)  223. 
D)  2 × 23.

Question 6

Which of the following statements is correct?

Accepted Answer

A)  All cells have the same genes. 
B)  All cells express the same genes. 
C)  All cells have the same proteins. 
D)  all of the above 
A)  All cells have the same genes. 
B)  All cells express the same genes. 
C)  All cells have the same proteins. 
D)  all of the above

Question 7

What is/are the mechanism(s) by which stress can influence gene expression?

Accepted Answer

A)  producing hormones that bind to regulatory regions of genes 
B)  triggering changes in the coiling of DNA around histones 
C)  causing mutations that change the DNA sequence in a gene 
D)  a and b 
E)  a, b, and c 
A)  producing hormones that bind to regulatory regions of genes 
B)  triggering changes in the coiling of DNA around histones 
C)  causing mutations that change the DNA sequence in a gene 
D)  a and b 
E)  a, b, and c

Question 8

Please critique the following statement: a single gene codes for a single protein.

Accepted Answer

The statement "a single gene codes for a

Question 9

Polyphenic traits are an example of

Accepted Answer

A)  phenotypic plasticity. 
B)  quantitative trait loci. 
C)  simple genetic polymorphism. 
D)  dominant traits. 
A)  phenotypic plasticity. 
B)  quantitative trait loci. 
C)  simple genetic polymorphism. 
D)  dominant traits.

Question 10

Most chemical reactions in a cell are performed by

Accepted Answer

A)  DNA. 
B)  RNA. 
C)  proteins. 
D)  amino acids. 
A)  DNA. 
B)  RNA. 
C)  proteins. 
D)  amino acids.

Question 11

How do bacteria and archaea pass on genetic information to the next generation?

Accepted Answer

A)  copying their chromosome and then dividing 
B)  dividing their chromosome into four daughter cells 
C)  going through the process of mitosis 
D)  passing plasmids to other bacteria via conjugation 
A)  copying their chromosome and then dividing 
B)  dividing their chromosome into four daughter cells 
C)  going through the process of mitosis 
D)  passing plasmids to other bacteria via conjugation

Question 12

Which of the following could result in a polyphenism?

Accepted Answer

A)  A mutation creates a deleterious version of an allele that is then passed on to an organism's offspring. 
B)  A change in an environmental cue switches the production of one phenotype to an alternate phenotype. 
C)  The cumulative action of multiple genes produces variation among individuals over a given range. 
D)  A combination of alleles on a single gene produces two or more discrete phenotypes in a population. 
A)  A mutation creates a deleterious version of an allele that is then passed on to an organism's offspring. 
B)  A change in an environmental cue switches the production of one phenotype to an alternate phenotype. 
C)  The cumulative action of multiple genes produces variation among individuals over a given range. 
D)  A combination of alleles on a single gene produces two or more discrete phenotypes in a population.

Question 13

Changes to the structure of a protein can affect the protein's ability to

Accepted Answer

A)  catalyze chemical reactions. 
B)  respond to signal molecules. 
C)  carry information from one cell to another. 
D)  a and b 
E)  a, b, and c 
A)  catalyze chemical reactions. 
B)  respond to signal molecules. 
C)  carry information from one cell to another. 
D)  a and b 
E)  a, b, and c

Question 14

Which of the following is involved in pre-transcriptional gene regulation?

Accepted Answer

A)  histones 
B)  microRNA 
C)  DNA methylation 
D)  alternative splicing 
A)  histones 
B)  microRNA 
C)  DNA methylation 
D)  alternative splicing

Question 15

Height is a quantitative trait, meaning that genes at several loci contribute to the phenotype. Does this mean that any two individuals in a population that differ in height also differ in the alleles they carry?

Accepted Answer

Height is indeed a quantitative trait, w

Question 16

The genome of an organism does not contain which of the following elements?

Accepted Answer

A)  proteins 
B)  pseudogenes 
C)  protein-coding genes 
D)  mobile genetic elements 
A)  proteins 
B)  pseudogenes 
C)  protein-coding genes 
D)  mobile genetic elements

Question 17

Which type of mutation has the highest rate of occurrence in humans?

Accepted Answer

A)  insertions 
B)  deletions 
C)  duplications 
D)  point mutations 
A)  insertions 
B)  deletions 
C)  duplications 
D)  point mutations

Question 18

Compare and contrast how genetic variation is created in eukaryotes versus bacteria and archaea.

Accepted Answer

Genetic variation is created in eukaryot

Question 19

Which of the following statements about genome size is false?

Accepted Answer

A)  The complexity and size of genomes vary widely between taxa. 
B)  The genome includes all coding and noncoding regions of an organism's DNA. 
C)  There is a correlation between genome size and gene number across species. 
D)  Protein-coding genes make up a tiny portion of the genome in many eukaryotes. 
A)  The complexity and size of genomes vary widely between taxa. 
B)  The genome includes all coding and noncoding regions of an organism's DNA. 
C)  There is a correlation between genome size and gene number across species. 
D)  Protein-coding genes make up a tiny portion of the genome in many eukaryotes.

Question 20

The presence of a mRNA transcript of a gene in a cell means that

Accepted Answer

A)  translation of the gene has occurred. 
B)  transcription of the gene has occurred. 
C)  a and b 
D)  none of the above 
A)  translation of the gene has occurred. 
B)  transcription of the gene has occurred. 
C)  a and b 
D)  none of the above

Trans-acting regulatory elements

Weight, because it can vary among individuals over a range of values, is an example of a

Genetic recombination occurs during meiosis when

Michael Lynch and his colleagues demonstrated in yeast that mutations occur rarely-in fact, a single yeast cell may not experience a single point mutation in its genome. How can we reconcile the low rate of mutation with the fact that mutation is the engine that drives evolution?

The number of possible combinations of paternal and maternal chromosomes is

Which of the following statements is correct?

What is/are the mechanism(s) by which stress can influence gene expression?

Please critique the following statement: a single gene codes for a single protein.

Polyphenic traits are an example of

Most chemical reactions in a cell are performed by

How do bacteria and archaea pass on genetic information to the next generation?

Which of the following could result in a polyphenism?

Changes to the structure of a protein can affect the protein's ability to

Which of the following is involved in pre-transcriptional gene regulation?

Height is a quantitative trait, meaning that genes at several loci contribute to the phenotype. Does this mean that any two individuals in a population that differ in height also differ in the alleles they carry?

The genome of an organism does not contain which of the following elements?

Which type of mutation has the highest rate of occurrence in humans?

Compare and contrast how genetic variation is created in eukaryotes versus bacteria and archaea.

Which of the following statements about genome size is false?

The presence of a mRNA transcript of a gene in a cell means that

The Whale and the Virus: How Scientists Study Evolution

From Natural Philosophy to Darwin: a Brief History of Evolutionary Ideas

What the Rocks Say: How Geology and Paleontology Reveal the History of Life

The Tree of Life: How Biologists Use Phylogeny to Reconstruct the Deep Past

The Ways of Change: Drift and Selection

Beyond Alleles: Quantitative Genetics and the Evolution of Phenotypes

The History in Our Genes

From Genes to Traits: the Evolution of Genetic Networks and Development

Natural Selection: Empirical Studies in the Wild

Sex: Causes and Consequences

After Conception: the Evolution of Life History and Parental Care

The Origin of Species

Macroevolution: the Long Run

Intimate Partnerships: How Species Adapt to Each Other

Brains and Behavior

Human Evolution: a New Kind of Ape

Evolutionary Medicine

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Exam 5: Raw Material: Heritable Variation Among Individuals

Trans-acting regulatory elements

Weight, because it can vary among individuals over a range of values, is an example of a

Genetic recombination occurs during meiosis when

Michael Lynch and his colleagues demonstrated in yeast that mutations occur rarely-in fact, a single yeast cell may not experience a single point mutation in its genome. How can we reconcile the low rate of mutation with the fact that mutation is the engine that drives evolution?

The number of possible combinations of paternal and maternal chromosomes is

Which of the following statements is correct?

What is/are the mechanism(s) by which stress can influence gene expression?

Please critique the following statement: a single gene codes for a single protein.

Polyphenic traits are an example of

Most chemical reactions in a cell are performed by

How do bacteria and archaea pass on genetic information to the next generation?

Which of the following could result in a polyphenism?

Changes to the structure of a protein can affect the protein's ability to

Which of the following is involved in pre-transcriptional gene regulation?

Height is a quantitative trait, meaning that genes at several loci contribute to the phenotype. Does this mean that any two individuals in a population that differ in height also differ in the alleles they carry?

The genome of an organism does not contain which of the following elements?

Which type of mutation has the highest rate of occurrence in humans?

Compare and contrast how genetic variation is created in eukaryotes versus bacteria and archaea.

Which of the following statements about genome size is false?

The presence of a mRNA transcript of a gene in a cell means that

The Whale and the Virus: How Scientists Study Evolution

From Natural Philosophy to Darwin: a Brief History of Evolutionary Ideas

What the Rocks Say: How Geology and Paleontology Reveal the History of Life

The Tree of Life: How Biologists Use Phylogeny to Reconstruct the Deep Past

The Ways of Change: Drift and Selection

Beyond Alleles: Quantitative Genetics and the Evolution of Phenotypes

The History in Our Genes

From Genes to Traits: the Evolution of Genetic Networks and Development

Natural Selection: Empirical Studies in the Wild

Sex: Causes and Consequences

After Conception: the Evolution of Life History and Parental Care

The Origin of Species

Macroevolution: the Long Run

Intimate Partnerships: How Species Adapt to Each Other

Brains and Behavior

Human Evolution: a New Kind of Ape

Evolutionary Medicine

Filters