Question 1

What kind of transposition causes an increase in the copy number of transposable elements?

Accepted Answer

A) All transpositions increase the copy number of transposable elements. 
B) nonreplicative transposition 
C) replicative transposition 
D) mutagenic transposition 
E) none of the above 
A) All transpositions increase the copy number of transposable elements. 
B) nonreplicative transposition 
C) replicative transposition 
D) mutagenic transposition 
E) none of the above C

Question 2

Which of the following is NOT a reason that mutations are important?

Accepted Answer

A) Mutations provide genetic stability. 
B) Mutations can cause diseases and disorders. 
C) Mutations direct evolution. 
D) Mutations help researchers understand biological processes. 
A) Mutations provide genetic stability. 
B) Mutations can cause diseases and disorders. 
C) Mutations direct evolution. 
D) Mutations help researchers understand biological processes. A

Question 3

Which of the following is NOT true regarding the mutagenic nature of transposition?

Accepted Answer

A) It can disrupt the function of a gene. 
B) It can cause DNA rearrangements. 
C) Researchers use the mutagenic nature of transposons to study gene function. 
D) There is no evidence that transposition is regulated. 
A) It can disrupt the function of a gene. 
B) It can cause DNA rearrangements. 
C) Researchers use the mutagenic nature of transposons to study gene function. 
D) There is no evidence that transposition is regulated. D

Question 4

Which is NOT true of transposable elements?

Accepted Answer

A) Their movement will not cause mutations. 
B) They often generate short flanking direct repeats. 
C) Many will possess short terminal inverted repeats. 
D) They are mobile DNA. 
E) All of the above are true. 
A) Their movement will not cause mutations. 
B) They often generate short flanking direct repeats. 
C) Many will possess short terminal inverted repeats. 
D) They are mobile DNA. 
E) All of the above are true.

Question 5

A mutation on gene X that overrides the effect of a previous mutation on gene Y is called what?

Accepted Answer

A) reverse mutation 
B) intragenic suppressor mutation 
C) intergenic suppressor mutation. 
D) neutral mutation 
E) forward mutation 
A) reverse mutation 
B) intragenic suppressor mutation 
C) intergenic suppressor mutation. 
D) neutral mutation 
E) forward mutation

Question 6

The disease Xeroderma pigmentosum results from DNA-repair defects.People with this disease are sensitive to UV light and have atypical skin pigmentation.Thus these people have higher incidences of what other disease?

Accepted Answer

A) albinism 
B) skin cancer 
C) X-linked disease 
D) none of the above 
A) albinism 
B) skin cancer 
C) X-linked disease 
D) none of the above

Question 7

An_______ error occurs when a mismatched base has been incorporated into a newly synthesized nucleotide chain.When this DNA is copied,this error leads to an_____ error.

Accepted Answer

A) replication; incorporated 
B) tautomeric; replication 
C) incorporated; replication 
D) incorporated; tautomeric 
E) tautomeric; incorporated 
A) replication; incorporated 
B) tautomeric; replication 
C) incorporated; replication 
D) incorporated; tautomeric 
E) tautomeric; incorporated

Question 8

What kind of chemical mutagen would produce hydroxyl radicals during aerobic metabolism?

Accepted Answer

A) base analog 
B) agent that causes oxidation 
C) alkylating agent 
D) deamination 
E) hydroxylamine 
A) base analog 
B) agent that causes oxidation 
C) alkylating agent 
D) deamination 
E) hydroxylamine

What kind of transposition causes an increase in the copy number of transposable elements?

Which of the following is NOT a reason that mutations are important?

Which of the following is NOT true regarding the mutagenic nature of transposition?

Which is NOT true of transposable elements?

A mutation on gene X that overrides the effect of a previous mutation on gene Y is called what?

The disease Xeroderma pigmentosum results from DNA-repair defects.People with this disease are sensitive to UV light and have atypical skin pigmentation.Thus these people have higher incidences of what other disease?

An___ error occurs when a mismatched base has been incorporated into a newly synthesized nucleotide chain.When this DNA is copied,this error leads to an_ error.

What kind of chemical mutagen would produce hydroxyl radicals during aerobic metabolism?

Introduction to Genetics

Chromosomes and Cellular Reproduction

Basic Principles of Heredity

Extensions and Modifications of Basic Principles

Linkage, Recombination, and Eukaryotic Gene Mapping

Bacterial and Viral Genetic Systems

Chromosome Variation

DNA: The Chemical Nature of the Gene

DNA Replication

From DNA to Proteins: Transcription and Rna Processing

From DNA to Proteins: Translation

Control of Gene Expression

Molecular Genetic Analysis, Biotechnology, and Genomics

Cancer Genetics

Quantitative Genetics

Population and Evolutionary Genetics

Filters

Exam 13: Gene Mutations, Transposable Elements, and Dna Repair

What kind of transposition causes an increase in the copy number of transposable elements?

Which of the following is NOT a reason that mutations are important?

Which of the following is NOT true regarding the mutagenic nature of transposition?

Which is NOT true of transposable elements?

A mutation on gene X that overrides the effect of a previous mutation on gene Y is called what?

The disease Xeroderma pigmentosum results from DNA-repair defects.People with this disease are sensitive to UV light and have atypical skin pigmentation.Thus these people have higher incidences of what other disease?

An_______ error occurs when a mismatched base has been incorporated into a newly synthesized nucleotide chain.When this DNA is copied,this error leads to an_____ error.

What kind of chemical mutagen would produce hydroxyl radicals during aerobic metabolism?

Introduction to Genetics

Chromosomes and Cellular Reproduction

Basic Principles of Heredity

Extensions and Modifications of Basic Principles

Linkage, Recombination, and Eukaryotic Gene Mapping

Bacterial and Viral Genetic Systems

Chromosome Variation

DNA: The Chemical Nature of the Gene

DNA Replication

From DNA to Proteins: Transcription and Rna Processing

From DNA to Proteins: Translation

Control of Gene Expression

Molecular Genetic Analysis, Biotechnology, and Genomics

Cancer Genetics

Quantitative Genetics

Population and Evolutionary Genetics

Filters

An___ error occurs when a mismatched base has been incorporated into a newly synthesized nucleotide chain.When this DNA is copied,this error leads to an_ error.