Question 1

Which cell type experiences germinal mutations?

Accepted Answer

A)  Squamous Epithelial 
B)  Chondrocytes 
C)  Gametes 
D)  Cuboidal Epithelial 
E)  Columnar Epithelial 
A)  Squamous Epithelial 
B)  Chondrocytes 
C)  Gametes 
D)  Cuboidal Epithelial 
E)  Columnar Epithelial

Question 2

Which of the following is considered a point mutation? 1.Substitution of the base A for the base C
2)Deletion of the base T
3)Insertion of the base G

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  1 and 2 
E)  All of these 
A)  1 
B)  2 
C)  3 
D)  1 and 2 
E)  All of these

Question 3

Which of the following statements is not true about mutation?

Accepted Answer

A)  Mutation refers to both change in the genetic material and the process by which the change occurs 
B)  Point mutations involve changes at specific sites in a gene 
C)  If a mutation occurs in a somatic cell, the mutant phenotype will be passed on to the offspring of that organism 
D)  The intrinsic mistake frequency in nucleotide selection during DNA polymerization is 10?? 
E)  None of these 
A)  Mutation refers to both change in the genetic material and the process by which the change occurs 
B)  Point mutations involve changes at specific sites in a gene 
C)  If a mutation occurs in a somatic cell, the mutant phenotype will be passed on to the offspring of that organism 
D)  The intrinsic mistake frequency in nucleotide selection during DNA polymerization is 10?? 
E)  None of these

Question 4

Hemoglobin is a model system to illustrate the deleterious effects of mutations.Which of the following statements about deleterious mutations in human hemoglobin genes is false?

Accepted Answer

A)  Hemoglobin A and hemoglobin S differ at only one amino acid position 
B)  In hemoglobin S, the substitution of valine for glutamic acid causes an aggregation of hemoglobin molecules not found in hemoglobin A 
C)  The molecular difference between hemoglobin A and hemoglobin S was identified by protein sequence before nucleotide sequence 
D)  The valine to glutamic acid substitution is the only amino acid change so far identified in the b chain of hemoglobin 
E)  Homozygous (Hbsb/Hbsb) leads to severe hemolytic anemia, which is often fatal. 
A)  Hemoglobin A and hemoglobin S differ at only one amino acid position 
B)  In hemoglobin S, the substitution of valine for glutamic acid causes an aggregation of hemoglobin molecules not found in hemoglobin A 
C)  The molecular difference between hemoglobin A and hemoglobin S was identified by protein sequence before nucleotide sequence 
D)  The valine to glutamic acid substitution is the only amino acid change so far identified in the b chain of hemoglobin 
E)  Homozygous (Hbsb/Hbsb) leads to severe hemolytic anemia, which is often fatal.

Question 5

Which of the following DNA alterations can be corrected by light-dependent repair?

Accepted Answer

A)  Methylation 
B)  Thymine dimers 
C)  Mismatched basepairing 
D)  Hydroxylation 
E)  Inversions 
A)  Methylation 
B)  Thymine dimers 
C)  Mismatched basepairing 
D)  Hydroxylation 
E)  Inversions

Question 6

Bruce Ames and coworkers developed an inexpensive and sensitive method for testing the mutagenicity of chemicals with histidine auxotrophic mutants of:

Accepted Answer

A)  E. coli 
B)  S. aureus 
C)  B. subtilis 
D)  Salmonella 
E)  C. elegans 
A)  E. coli 
B)  S. aureus 
C)  B. subtilis 
D)  Salmonella 
E)  C. elegans

Question 7

Briefly explain how stationary phase mutagenesis occurs in bacteria such as E.coli.

Accepted Answer

It occurs when populations of bacteria q

Question 8

Briefly explain how mutant polypeptides can cause blocks in a metabolic pathway.Please use a real-life example.

Accepted Answer

@#IMG-DLM& If Gene A is mutated and can not form a

Question 9

Which base pair combinations can form when nitrogenous bases are present in their rare imino or enol states?

Accepted Answer

A)  A:T 
B)  C:G 
C)  A:C 
D)  A:T and C:G 
E)  C:G and A:C 
A)  A:T 
B)  C:G 
C)  A:C 
D)  A:T and C:G 
E)  C:G and A:C

Question 10

If a mutation occurs in a somatic cell,the resulting mutant phenotype will occur:

Accepted Answer

A)  Only in the Individual cell 
B)  Only in the progeny from that individual cell 
C)  Only in the offspring of that organism 
D)  In both the progeny of that individual cell and the individual cell itself 
E)  Neither the progeny from that individual cell or the offspring of the organism 
A)  Only in the Individual cell 
B)  Only in the progeny from that individual cell 
C)  Only in the offspring of that organism 
D)  In both the progeny of that individual cell and the individual cell itself 
E)  Neither the progeny from that individual cell or the offspring of the organism

Which cell type experiences germinal mutations?

Which of the following is considered a point mutation? 1.Substitution of the base A for the base C 2)Deletion of the base T 3)Insertion of the base G

Which of the following statements is not true about mutation?

Hemoglobin is a model system to illustrate the deleterious effects of mutations.Which of the following statements about deleterious mutations in human hemoglobin genes is false?

Which of the following DNA alterations can be corrected by light-dependent repair?

Bruce Ames and coworkers developed an inexpensive and sensitive method for testing the mutagenicity of chemicals with histidine auxotrophic mutants of:

Briefly explain how stationary phase mutagenesis occurs in bacteria such as E.coli.

Briefly explain how mutant polypeptides can cause blocks in a metabolic pathway.Please use a real-life example.

Which base pair combinations can form when nitrogenous bases are present in their rare imino or enol states?

If a mutation occurs in a somatic cell,the resulting mutant phenotype will occur:

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Regulation Of Gene Expression In Prokaryotes

Regulation Of Gene Expression In Eukaryotes

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Exam 13: Mutation,DNA Repair,And Recombination

Which cell type experiences germinal mutations?

Which of the following is considered a point mutation? 1.Substitution of the base A for the base C 2)Deletion of the base T 3)Insertion of the base G

Which of the following statements is not true about mutation?

Hemoglobin is a model system to illustrate the deleterious effects of mutations.Which of the following statements about deleterious mutations in human hemoglobin genes is false?

Which of the following DNA alterations can be corrected by light-dependent repair?

Bruce Ames and coworkers developed an inexpensive and sensitive method for testing the mutagenicity of chemicals with histidine auxotrophic mutants of:

Briefly explain how stationary phase mutagenesis occurs in bacteria such as E.coli.

Briefly explain how mutant polypeptides can cause blocks in a metabolic pathway.Please use a real-life example.

Which base pair combinations can form when nitrogenous bases are present in their rare imino or enol states?

If a mutation occurs in a somatic cell,the resulting mutant phenotype will occur:

The Science Of Genetics

Cellular Reproduction

Mendelism The Basic Principles Of Inheritance

Extensions Of Mendelism

The Chromosomal Basis Of Mendelism

Variation In Chromosome Number And Structure

Linkage,Crossing Over,And Chromosome Mapping In …

The Genetics Of Bacteria And Their Viruses

DNA And The Molecular Structure Of Chromosomes

Replication Of DNA And Chromosomes

Transcription And RNA Processing

Translation And The Genetic Code

The Techniques Of Molecular Genetics

Genomics

Applications Of Molecular Genetics

Transposable Genetics Elements

Regulation Of Gene Expression In Prokaryotes

Regulation Of Gene Expression In Eukaryotes

The Genetic Control Of Animal Development

The Genetic Basis Of Cancer

Inheritance Of Complex Traits

Population Genetics

Evolutionary Genetics

Filters