Question 1

DNA methylation

Accepted Answer

A)  is a form of transcriptional regulation of gene expression. 
B)  is a form of post-translational regulation of gene expression. 
C)  is a form of post-transcriptional regulation of gene expression. 
D)  none of the above 
A)  is a form of transcriptional regulation of gene expression. 
B)  is a form of post-translational regulation of gene expression. 
C)  is a form of post-transcriptional regulation of gene expression. 
D)  none of the above

Question 2

Why are mutations crucial for evolution?

Accepted Answer

A)  Mutations in germline cells that affect large parts of the genome are very common. 
B)  Mutations are not necessarily harmful and may be beneficial. 
C)  Mutations are the ultimate source of genetic variation in populations. 
D)  Mutations can change the DNA sequence without affecting the protein it codes for. 
A)  Mutations in germline cells that affect large parts of the genome are very common. 
B)  Mutations are not necessarily harmful and may be beneficial. 
C)  Mutations are the ultimate source of genetic variation in populations. 
D)  Mutations can change the DNA sequence without affecting the protein it codes for.

Question 3

Horizontal gene transfer

Accepted Answer

A)  can occur via the transfer of plasmids. 
B)  can be beneficial to the organism. 
C)  is more common in eukaryotes than in prokaryotes. 
D)  a and b 
E)  a, b, and c 
A)  can occur via the transfer of plasmids. 
B)  can be beneficial to the organism. 
C)  is more common in eukaryotes than in prokaryotes. 
D)  a and b 
E)  a, b, and c

Question 4

Which of the following is/are sources of genetic variation between gametes?

Accepted Answer

A)  the exchange of genetic material between chromosomes 
B)  the nonidentical, paired chromosomes of parents 
C)  the random mixing of parental copies of chromosomes 
D)  a and b 
E)  a, b, and c 
A)  the exchange of genetic material between chromosomes 
B)  the nonidentical, paired chromosomes of parents 
C)  the random mixing of parental copies of chromosomes 
D)  a and b 
E)  a, b, and c

Question 5

Each of us is genetically unique. Describe two processes that ensure that your future full sibling is going to be genetically different from you, even though you have the same parents.

Accepted Answer

The two processes that ensure that a fut

Question 6

A genetic polymorphism is

Accepted Answer

A)  multiple discrete phenotypes arising from a genotype, depending on the environment. 
B)  the simultaneous occurrence of two or more discrete phenotypes within a population. 
C)  a measurable phenotype that varies among individuals over a given range of values. 
D)  a change in the phenotype produced by a single genotype in different environments. 
A)  multiple discrete phenotypes arising from a genotype, depending on the environment. 
B)  the simultaneous occurrence of two or more discrete phenotypes within a population. 
C)  a measurable phenotype that varies among individuals over a given range of values. 
D)  a change in the phenotype produced by a single genotype in different environments.

Question 7

Which of the following statements best describes how genetic information stored in DNA is transformed into a product?

Accepted Answer

A)  Genes are translated into mRNA, which is then transcribed into proteins. 
B)  Genes are transcribed into mRNA, which is then translated into proteins. 
C)  Genes are translated into proteins, which are then transformed into mRNA. 
D)  RNA polymerase is transcribed into mRNA, which is then translated into proteins. 
A)  Genes are translated into mRNA, which is then transcribed into proteins. 
B)  Genes are transcribed into mRNA, which is then translated into proteins. 
C)  Genes are translated into proteins, which are then transformed into mRNA. 
D)  RNA polymerase is transcribed into mRNA, which is then translated into proteins.

Question 8

Which of the following type of mutation cannot be inherited by animals?

Accepted Answer

A)  somatic mutation 
B)  germline mutation 
C)  point mutation 
D)  frameshift mutation 
A)  somatic mutation 
B)  germline mutation 
C)  point mutation 
D)  frameshift mutation

Question 9

Which of the following examples illustrates phenotypic plasticity?

Accepted Answer

A)  Humans are almost always born with two eyes regardless of how much food was available to the mother. 
B)  Individuals with two copies of the HMGA2 allele grow taller than individuals with only one copy. 
C)  Paired chromosomes exchange genetic material, leading to gametes with unique combinations of DNA. 
D)  Children with access to adequate nutrition can grow taller than children who are malnourished. 
A)  Humans are almost always born with two eyes regardless of how much food was available to the mother. 
B)  Individuals with two copies of the HMGA2 allele grow taller than individuals with only one copy. 
C)  Paired chromosomes exchange genetic material, leading to gametes with unique combinations of DNA. 
D)  Children with access to adequate nutrition can grow taller than children who are malnourished.

Question 10

What is a nucleotide?

Accepted Answer

A)  the structural unit of proteins 
B)  the structural unit of DNA and RNA 
C)  one of four nitrogen-containing molecules 
D)  a double-stranded, helical molecule 
A)  the structural unit of proteins 
B)  the structural unit of DNA and RNA 
C)  one of four nitrogen-containing molecules 
D)  a double-stranded, helical molecule

Question 11

Duplication is a type of mutation that alters DNA by copying a segment a second time. Which of the following segments of DNA can be duplicated?

Accepted Answer

A)  a region of a gene 
B)  a whole gene 
C)  an entire genome 
D)  all of the above 
A)  a region of a gene 
B)  a whole gene 
C)  an entire genome 
D)  all of the above

DNA methylation

Why are mutations crucial for evolution?

Horizontal gene transfer

Which of the following is/are sources of genetic variation between gametes?

Each of us is genetically unique. Describe two processes that ensure that your future full sibling is going to be genetically different from you, even though you have the same parents.

A genetic polymorphism is

Which of the following statements best describes how genetic information stored in DNA is transformed into a product?

Which of the following type of mutation cannot be inherited by animals?

Which of the following examples illustrates phenotypic plasticity?

What is a nucleotide?

Duplication is a type of mutation that alters DNA by copying a segment a second time. Which of the following segments of DNA can be duplicated?

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

Exam 5: Raw Material: Heritable Variation Among Individuals

DNA methylation

Why are mutations crucial for evolution?

Horizontal gene transfer

Which of the following is/are sources of genetic variation between gametes?

Each of us is genetically unique. Describe two processes that ensure that your future full sibling is going to be genetically different from you, even though you have the same parents.

A genetic polymorphism is

Which of the following statements best describes how genetic information stored in DNA is transformed into a product?

Which of the following type of mutation cannot be inherited by animals?

Which of the following examples illustrates phenotypic plasticity?

What is a nucleotide?

Duplication is a type of mutation that alters DNA by copying a segment a second time. Which of the following segments of DNA can be duplicated?

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