Question 1

Epigenetic changes

Accepted Answer

A)  results in unstable phenotypes. 
B)  requires DNA mutations. 
C)  are due to distortions in the DNA helix. 
D)  can be dependent on whether the promoter regions for genes are available for RNA polymerase. 
E)  are the same for all cells in an individual. 
A)  results in unstable phenotypes. 
B)  requires DNA mutations. 
C)  are due to distortions in the DNA helix. 
D)  can be dependent on whether the promoter regions for genes are available for RNA polymerase. 
E)  are the same for all cells in an individual.

Question 2

Which of the following statements about mutations is true?

Accepted Answer

A)  Mutations in body cells can be passed on to future generations. 
B)  The only changes due to mutation are in the amino acid sequence of proteins. 
C)  Mutations in body cells are not known to cause any phenotypic changes. 
D)  All mutations are single-nucleotide substitutions. 
E)  Mutations in germ cells can be passed on to future generations. 
A)  Mutations in body cells can be passed on to future generations. 
B)  The only changes due to mutation are in the amino acid sequence of proteins. 
C)  Mutations in body cells are not known to cause any phenotypic changes. 
D)  All mutations are single-nucleotide substitutions. 
E)  Mutations in germ cells can be passed on to future generations.

Question 3

A cell that has accumulated a lot of mutations can have any of the fates below EXCEPT

Accepted Answer

A)  undergoing apoptosis. 
B)  entering senescence. 
C)  becoming cancerous. 
D)  undergoing apoptosis then become cancerous. 
E)  remaining in a dormant state. 
A)  undergoing apoptosis. 
B)  entering senescence. 
C)  becoming cancerous. 
D)  undergoing apoptosis then become cancerous. 
E)  remaining in a dormant state.

Question 4

The complete set of genetic information of a human or other organism is called its

Accepted Answer

A)  genome. 
B)  mutation. 
C)  chromosome. 
D)  phenotype. 
E)  genotype. 
A)  genome. 
B)  mutation. 
C)  chromosome. 
D)  phenotype. 
E)  genotype.

Question 5

MATCHING
Match the associated terms.
-change in DNA sequence

Accepted Answer

A) genome 
B) millirem 
C) apoptosis 
D) histones 
E) free radical
F)imprinting
G)proofreading
H)mutation
I)methylation
J)frameshift
K)senescence 
A) genome 
B) millirem 
C) apoptosis 
D) histones 
E) free radical
F)imprinting
G)proofreading
H)mutation
I)methylation
J)frameshift
K)senescence

Question 6

All mutations are harmful.

Accepted Answer

A) True 
 B)False

Question 7

Genetic imprinting

Accepted Answer

A)  is due to DNA mutations. 
B)  affects all genes. 
C)  assures that both the maternal and paternal copies of each gene are expressed. 
D)  is due to epigenetic changes. 
E)  has not been seen in any genetic disorder. 
A)  is due to DNA mutations. 
B)  affects all genes. 
C)  assures that both the maternal and paternal copies of each gene are expressed. 
D)  is due to epigenetic changes. 
E)  has not been seen in any genetic disorder.

Question 8

Explain how each of the following mutagens cause mutations.What are the most common types of mutations caused by each mutagen?
a. base analogs
b. nitrates
c. chemicals in some pesticides

Accepted Answer

a. Base analogs are chemicals that struc

Question 9

Some mutations can provide an advantage to those who carry them.

Accepted Answer

A) True 
 B)False

Question 10

MATCHING
Match the associated terms.
-shift in reading frame

Accepted Answer

A) genome 
B) millirem 
C) apoptosis 
D) histones 
E) free radical
F)imprinting
G)proofreading
H)mutation
I)methylation
J)frameshift
K)senescence 
A) genome 
B) millirem 
C) apoptosis 
D) histones 
E) free radical
F)imprinting
G)proofreading
H)mutation
I)methylation
J)frameshift
K)senescence

Question 11

Which of the following statements about DNA repair is TRUE?

Accepted Answer

A)  All of the mistakes made in DNA replication are fixed by the proofreading activity of DNA polymerase. 
B)  There is only one DNA repair system in humans. 
C)  All mutations are detected and fixed by DNA repair systems. 
D)  DNA repair systems recognize distortions in the DNA double helix. 
E)  There is no DNA repair system to deal with damage caused by exposure to ultraviolet light. 
A)  All of the mistakes made in DNA replication are fixed by the proofreading activity of DNA polymerase. 
B)  There is only one DNA repair system in humans. 
C)  All mutations are detected and fixed by DNA repair systems. 
D)  DNA repair systems recognize distortions in the DNA double helix. 
E)  There is no DNA repair system to deal with damage caused by exposure to ultraviolet light.

Question 12

Free radicals

Accepted Answer

A)  form because of radiation exposure. 
B)  form due to base analogs. 
C)  form when atoms have paired electrons. 
D)  are not reactive. 
E)  are incorporated into DNA instead of normal bases. 
A)  form because of radiation exposure. 
B)  form due to base analogs. 
C)  form when atoms have paired electrons. 
D)  are not reactive. 
E)  are incorporated into DNA instead of normal bases.

Question 13

How does radiation exposure from dental x-rays compare to our average annual dose from background radiation? What is the average total radiation dose in the United States?

Accepted Answer

According ,the annual dose from backgrou

Question 14

Mutations are changes in DNA sequence.

Accepted Answer

A) True 
 B)False

Question 15

Why it is often difficult to diagnose fetal alcohol syndrome (FAS)? What additional measures are usually taken before a diagnosis is made?

Accepted Answer

A woman who drinks alcohol while pregnan

Question 16

MATCHING
Match the associated terms.
-CpG sequences

Accepted Answer

A) genome 
B) millirem 
C) apoptosis 
D) histones 
E) free radical
F)imprinting
G)proofreading
H)mutation
I)methylation
J)frameshift
K)senescence 
A) genome 
B) millirem 
C) apoptosis 
D) histones 
E) free radical
F)imprinting
G)proofreading
H)mutation
I)methylation
J)frameshift
K)senescence

Epigenetic changes

Which of the following statements about mutations is true?

A cell that has accumulated a lot of mutations can have any of the fates below EXCEPT

The complete set of genetic information of a human or other organism is called its

MATCHING Match the associated terms. -change in DNA sequence

All mutations are harmful.

Genetic imprinting

Explain how each of the following mutagens cause mutations.What are the most common types of mutations caused by each mutagen? a. base analogs b. nitrates c. chemicals in some pesticides

Some mutations can provide an advantage to those who carry them.

MATCHING Match the associated terms. -shift in reading frame

Which of the following statements about DNA repair is TRUE?

Free radicals

How does radiation exposure from dental x-rays compare to our average annual dose from background radiation? What is the average total radiation dose in the United States?

Mutations are changes in DNA sequence.

Why it is often difficult to diagnose fetal alcohol syndrome (FAS)? What additional measures are usually taken before a diagnosis is made?

MATCHING Match the associated terms. -CpG sequences

Sex and Development

Assisted Reproductive Technology

Changes in Chromosome Number

How Genes Are Transmitted From Generation to Generation

Gene Expression and Gene Regulation

Biotechnology

Genetic Testing and Prenatal Diagnosis

DNA Forensics

Genomics

Inheritance of Complex Traits

Cancer and the Cell Cycle

Behavior

Immunogenetics

Genetics and Populations

Human Evolution

A Different World: The Past, Present, and Future of Human Genetics

Biology Basics 1-Cells and Cell Structure

Biology Basics 2-DNA and RNA

Biology Basics 3-Genes, Populations, and the Environment

Filters

Exam 6: Changes in DNA: Mutations and Epigenetics

Epigenetic changes

Which of the following statements about mutations is true?

A cell that has accumulated a lot of mutations can have any of the fates below EXCEPT

The complete set of genetic information of a human or other organism is called its

MATCHING Match the associated terms. -change in DNA sequence

All mutations are harmful.

Genetic imprinting

Explain how each of the following mutagens cause mutations.What are the most common types of mutations caused by each mutagen? a. base analogs b. nitrates c. chemicals in some pesticides

Some mutations can provide an advantage to those who carry them.

MATCHING Match the associated terms. -shift in reading frame

Which of the following statements about DNA repair is TRUE?

Free radicals

How does radiation exposure from dental x-rays compare to our average annual dose from background radiation? What is the average total radiation dose in the United States?

Mutations are changes in DNA sequence.

Why it is often difficult to diagnose fetal alcohol syndrome (FAS)? What additional measures are usually taken before a diagnosis is made?

MATCHING Match the associated terms. -CpG sequences

Sex and Development

Assisted Reproductive Technology

Changes in Chromosome Number

How Genes Are Transmitted From Generation to Generation

Gene Expression and Gene Regulation

Biotechnology

Genetic Testing and Prenatal Diagnosis

DNA Forensics

Genomics

Inheritance of Complex Traits

Cancer and the Cell Cycle

Behavior

Immunogenetics

Genetics and Populations

Human Evolution

A Different World: The Past, Present, and Future of Human Genetics

Biology Basics 1-Cells and Cell Structure

Biology Basics 2-DNA and RNA

Biology Basics 3-Genes, Populations, and the Environment

Filters