Question 1

E coli DNA polymerase III removes mismatched nucleotides from the ___________________.

Accepted Answer

3` end of DNA

Question 2

An important feature(s) of the Ames test is/are:

Accepted Answer

A)  the inclusion of mammalian liver enzymes. 
B)  a linear response curve. 
C)  that the bacteria used are unable to grow in the absence of arginine. 
D)  A and B. 
E)  A, B and C. 
A)  the inclusion of mammalian liver enzymes. 
B)  a linear response curve. 
C)  that the bacteria used are unable to grow in the absence of arginine. 
D)  A and B. 
E)  A, B and C. D

Question 3

Replication errors are often corrected by proofreading and ___________________.

Accepted Answer

mismatch repair

Question 4

___________________ are intermediates in recombination pathways composed of four polynucleotide chains in a cross-like structure.

Accepted Answer

The answer of ___________________ are intermediates in recombination pathways composed...

Question 5

Describe the Ames test.

Accepted Answer

The Ames test is a simple and sensitive

Question 6

How is recombination used as a biochemical tool?

Accepted Answer

Recombination is used to move,

Question 7

Choose the correct answer from the list below. Not all of the answers will be used.
-_______________ is a rare skin disease caused by the inability to correct for UV damage to skin DNA.

Accepted Answer

A) uracil 
B) DNA ligase 
C) Huntington disease 
D) Ames 
E) xeroderma pigmentosum
F)tumor-suppressor genes
G)trinucleotide repeats
H)skin carcinoma
I)mutagen
J)direct repair
K)indirect repair
L)photolyase 
A) uracil 
B) DNA ligase 
C) Huntington disease 
D) Ames 
E) xeroderma pigmentosum
F)tumor-suppressor genes
G)trinucleotide repeats
H)skin carcinoma
I)mutagen
J)direct repair
K)indirect repair
L)photolyase

Question 8

What are the enzymes needed for base-excision repair?

Accepted Answer

DNA glycosylase, AP (apurinic

Question 9

What role does the protein RAD51 play in recombination?

Accepted Answer

RAD51 is a member of the ATPas

Question 10

Why is thymine used in DNA instead of uracil?

Accepted Answer

The methyl group on thymine al

Question 11

Huntington disease is caused by:

Accepted Answer

A)  pyrimidine dimers. 
B)  trinucleotide expansion. 
C)  suppressor mutants. 
D)  All of the above. 
E)  None of the above. 
A)  pyrimidine dimers. 
B)  trinucleotide expansion. 
C)  suppressor mutants. 
D)  All of the above. 
E)  None of the above.

Question 12

What are the enzymes needed for base-excision repair?

Accepted Answer

DNA glycosylase, AP (apurinic

Question 13

Light-driven DNA damage results in ___________________.

Accepted Answer

The answer of Light-driven DNA damage results in ___________________....

Question 14

A photoreactivating enzyme is called ___________________.

Accepted Answer

The answer of A photoreactivating enzyme is called ___________________....

Question 15

Name the types of DNA repair, categorized in groups.

Accepted Answer

The types include di

Question 16

X-rays cause damage to DNA by inducing ___________________.

Accepted Answer

single- an

Question 17

Describe the consequences of incorrect DNA replication or DNA damage.

Accepted Answer

The most serious consequences

Question 18

To What does the phrase "recombination of genetic material" refer to?

Accepted Answer

It refers to the situation in

Question 19

Photolyase functions to:

Accepted Answer

A)  repair pyrimidine dimers. 
B)  remove damaged bases. 
C)  ligate single-strand breaks. 
D)  All of the above. 
E)  None of the above. 
A)  repair pyrimidine dimers. 
B)  remove damaged bases. 
C)  ligate single-strand breaks. 
D)  All of the above. 
E)  None of the above.

Question 20

The three-strand structure involved in strand invasion is:

Accepted Answer

A)  the D-loop. 
B)  recombinase DNA. 
C)  an RNA triplet. 
D)  non-Watson-Crick pairing. 
E)  RecA 
A)  the D-loop. 
B)  recombinase DNA. 
C)  an RNA triplet. 
D)  non-Watson-Crick pairing. 
E)  RecA

Exam 35: DNA Repair and Recombination

E coli DNA polymerase III removes mismatched nucleotides from the ___________________.

An important feature(s) of the Ames test is/are:

Replication errors are often corrected by proofreading and ___________________.

___________________ are intermediates in recombination pathways composed of four polynucleotide chains in a cross-like structure.

Describe the Ames test.

How is recombination used as a biochemical tool?

Choose the correct answer from the list below. Not all of the answers will be used. -_______________ is a rare skin disease caused by the inability to correct for UV damage to skin DNA.

What are the enzymes needed for base-excision repair?

What role does the protein RAD51 play in recombination?

Why is thymine used in DNA instead of uracil?

Huntington disease is caused by:

What are the enzymes needed for base-excision repair?

Light-driven DNA damage results in ___________________.

A photoreactivating enzyme is called ___________________.

Name the types of DNA repair, categorized in groups.

X-rays cause damage to DNA by inducing ___________________.

Describe the consequences of incorrect DNA replication or DNA damage.

To What does the phrase "recombination of genetic material" refer to?

Photolyase functions to:

The three-strand structure involved in strand invasion is:

Biochemistry and the Unity of Life

Water, Weak Bonds, and the Generation of Order Out of Chaos

Amino Acids

Protein Three-Dimensional Structure

Techniques in Protein Biochemistry

Basic Concepts of Enzyme Action

Kinetics and Regulation

Mechanisms and Inhibitors

Hemoglobin: an Allosteric Protein

Carbohydrates

Lipids

Membrane Structure and Function

Signal Transduction Pathways

Digestion: Turning a Meal Into Cellular Biochemicals

Metabolism: Basic Concepts and Design

Glycolysis

Gluconeogenesis

Preparation for the Cycle

Harvesting Electrons From the Cycle

The Electron Transport Chain

The Proton-Motive Force

The Light Reactions

The Calvin Cycle

Glycogen Degradation

Glycogen Synthesis

The Pentose Phosphate Pathway

Fatty Acid Degredation

Fatty Acid Synthesis

Lipid Synthesis

Amino Acid Degradation and the Urea Cycle

Amino Acids Synthesis

Nucleotide Metabolism

The Structure of Informational Macromolecules: Dna and Rna

DNA Replication

RNA Synthesis and Regulation in Prokaryotes

Gene Expression in Eukaryotes

RNA Processing in Eukaryotes

The Genetic Code

The Mechanism of Protein Synthesis

Recombinant DNA Techniques

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