Question 1

The building blocks of the DNA molecule are known as:

Accepted Answer

A) Amino acids. 
B) Nucleotides. 
C) Polysaccharides. 
D) Hydrocarbons. 
A) Amino acids. 
B) Nucleotides. 
C) Polysaccharides. 
D) Hydrocarbons.

Question 2

The synthesis of new DNA from existing DNA is known as hybridization.

Accepted Answer

A) True 
 B)False

Question 3

Which statement about mitochondrial DNA is INCORRECT?

Accepted Answer

A) Mitochondrial DNA is located outside the cell's nucleus. 
B) Mitochondrial DNA is constructed in a loop configuration. 
C) Many copies of mitochondrial DNA's hypervariable regions are made by PCR. 
D) The number of repeat segments found in the hypervariable regions are used to type mitochondrial DNA. 
A) Mitochondrial DNA is located outside the cell's nucleus. 
B) Mitochondrial DNA is constructed in a loop configuration. 
C) Many copies of mitochondrial DNA's hypervariable regions are made by PCR. 
D) The number of repeat segments found in the hypervariable regions are used to type mitochondrial DNA.

Question 4

The sequence of ________ acids in a protein chain determines the shape and function of the protein.

Accepted Answer

The answer of The sequence of ________ acids in a...

Question 5

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once.
A)A technique for separating molecules through their migration on a support medium while under the influence of an electrical potential
B)Different fragment lengths of base pairs that result from cutting a DNA molecule with restriction enzymes
C)A genetic locus useful for determining gender
D)Small structures outside the nucleus that supply energy to the cell
E)Cells derived from the inner cheek lining
F)The building blocks of proteins
G)A technique that simultaneously detects more than one DNA marker in a single analysis
H)An unstained object adjacent to an area on which biological material has been deposited
I)A technique for replicating or copying a portion of a DNA strand outside a living cell
J)A rod-like structure in the cell nucleus composed of DNA, along which the genes are located
K)A repeating unit of DNA consisting of one of four bases-adenine, guanine, cytosine, or thymine-attached to a phosphate-sugar group
L)The process of joining two complementary strands of DNA to form a double-stranded molecule
M)A region of a DNA molecule that contains short segments of three to seven repeating base pairs
N)A short strand of DNA used to target a region of DNA for replication by PCR
O)DNA from skin cells transferred onto the surface of an object by simple contact
-Hybridization

Accepted Answer

The answer of Match the word in Column 1 to...

Question 6

Which statement about tandem repeats is NOT true?

Accepted Answer

A) More than 30% of the human genome is composed of these repeating units. 
B) Their origin is a mystery. 
C) It is thought that they may act as spacers between the coded regions of DNA. 
D) They are of no forensic interest. 
A) More than 30% of the human genome is composed of these repeating units. 
B) Their origin is a mystery. 
C) It is thought that they may act as spacers between the coded regions of DNA. 
D) They are of no forensic interest.

Question 7

Which statement regarding STRs is true?

Accepted Answer

A) Restriction enzymes are used to cut STRs from the DNA helix. 
B) There is little variation in the number of repeats from person to person. 
C) All humans have the same type of STRs. 
D) Typically a core repeat sequence would consist of 15-30 bases. 
A) Restriction enzymes are used to cut STRs from the DNA helix. 
B) There is little variation in the number of repeats from person to person. 
C) All humans have the same type of STRs. 
D) Typically a core repeat sequence would consist of 15-30 bases.

Question 8

The four bases associated with DNA are adenine, cytosine, guanine, and ________.

Accepted Answer

The answer of The four bases associated with DNA are...

Question 9

The molecular structure of DNA was deduced by:

Accepted Answer

A) Gregor Mendel. 
B) Francis Crick. 
C) James Watson. 
D) Both B and C 
A) Gregor Mendel. 
B) Francis Crick. 
C) James Watson. 
D) Both B and C

Question 10

A conventional STR profile emanating from a mixture of DNA from male donors yields four peaks or bands for each locus present. How many peaks or bands would you normally expect for each locus if a Y-STR profile is performed on the same sample?

Accepted Answer

A) One 
B) Two 
C) Three 
D) Four 
A) One 
B) Two 
C) Three 
D) Four

Question 11

Describe the process of DNA replication. What is the importance of DNA replication?

Accepted Answer

(should include points such as):
DNA rep

Question 12

Assume that two strands of DNA have been separated and that the base sequence on one strand is ATGC. What is the sequence of bases on the second strand?

Accepted Answer

A) GCAT 
B) ACTC 
C) TGGC 
D) TACG 
A) GCAT 
B) ACTC 
C) TGGC 
D) TACG

Question 13

A short tandem repeat (STR)is a region of a DNA molecule that contains short segments consisting of 50-100 repeating base pairs.

Accepted Answer

A) True 
 B)False

Question 14

Electrophoresis is widely used in the characterization of proteins and DNA in dried blood.

Accepted Answer

A) True 
 B)False

Question 15

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once.
A)A technique for separating molecules through their migration on a support medium while under the influence of an electrical potential
B)Different fragment lengths of base pairs that result from cutting a DNA molecule with restriction enzymes
C)A genetic locus useful for determining gender
D)Small structures outside the nucleus that supply energy to the cell
E)Cells derived from the inner cheek lining
F)The building blocks of proteins
G)A technique that simultaneously detects more than one DNA marker in a single analysis
H)An unstained object adjacent to an area on which biological material has been deposited
I)A technique for replicating or copying a portion of a DNA strand outside a living cell
J)A rod-like structure in the cell nucleus composed of DNA, along which the genes are located
K)A repeating unit of DNA consisting of one of four bases-adenine, guanine, cytosine, or thymine-attached to a phosphate-sugar group
L)The process of joining two complementary strands of DNA to form a double-stranded molecule
M)A region of a DNA molecule that contains short segments of three to seven repeating base pairs
N)A short strand of DNA used to target a region of DNA for replication by PCR
O)DNA from skin cells transferred onto the surface of an object by simple contact
-Touch DNA

Accepted Answer

The answer of Match the word in Column 1 to...

Question 16

Decoding the human ________ can be useful for diagnosing and treating genetic diseases.

Accepted Answer

The answer of Decoding the human ________ can be useful...

Question 17

Name two advantages and two disadvantages of mitochondrial DNA analysis compared to nuclear DNA analysis.

Accepted Answer

(should include points such as):
Mitocho

Question 18

What is an advantage of working with short DNA fragments?

Accepted Answer

A) They are more stable and less likely to break apart. 
B) Their quantity can be greatly amplified by PCR technology. 
C) They are less subject to degradation due to adverse environmental conditions. 
D) All of the above 
A) They are more stable and less likely to break apart. 
B) Their quantity can be greatly amplified by PCR technology. 
C) They are less subject to degradation due to adverse environmental conditions. 
D) All of the above

Question 19

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once.
A)A technique for separating molecules through their migration on a support medium while under the influence of an electrical potential
B)Different fragment lengths of base pairs that result from cutting a DNA molecule with restriction enzymes
C)A genetic locus useful for determining gender
D)Small structures outside the nucleus that supply energy to the cell
E)Cells derived from the inner cheek lining
F)The building blocks of proteins
G)A technique that simultaneously detects more than one DNA marker in a single analysis
H)An unstained object adjacent to an area on which biological material has been deposited
I)A technique for replicating or copying a portion of a DNA strand outside a living cell
J)A rod-like structure in the cell nucleus composed of DNA, along which the genes are located
K)A repeating unit of DNA consisting of one of four bases-adenine, guanine, cytosine, or thymine-attached to a phosphate-sugar group
L)The process of joining two complementary strands of DNA to form a double-stranded molecule
M)A region of a DNA molecule that contains short segments of three to seven repeating base pairs
N)A short strand of DNA used to target a region of DNA for replication by PCR
O)DNA from skin cells transferred onto the surface of an object by simple contact
-Amelogenin gene

Accepted Answer

The answer of Match the word in Column 1 to...

Question 20

Small amounts of blood are best submitted to a crime laboratory:

Accepted Answer

A) Immediately while still wet. 
B) In a druggists fold. 
C) After dried. 
D) After removal from surface of deposition and rehydration. 
A) Immediately while still wet. 
B) In a druggists fold. 
C) After dried. 
D) After removal from surface of deposition and rehydration.

The building blocks of the DNA molecule are known as:

The synthesis of new DNA from existing DNA is known as hybridization.

Which statement about mitochondrial DNA is INCORRECT?

The sequence of ________ acids in a protein chain determines the shape and function of the protein.

Which statement about tandem repeats is NOT true?

Which statement regarding STRs is true?

The four bases associated with DNA are adenine, cytosine, guanine, and ________.

The molecular structure of DNA was deduced by:

A conventional STR profile emanating from a mixture of DNA from male donors yields four peaks or bands for each locus present. How many peaks or bands would you normally expect for each locus if a Y-STR profile is performed on the same sample?

Describe the process of DNA replication. What is the importance of DNA replication?

Assume that two strands of DNA have been separated and that the base sequence on one strand is ATGC. What is the sequence of bases on the second strand?

A short tandem repeat (STR)is a region of a DNA molecule that contains short segments consisting of 50-100 repeating base pairs.

Electrophoresis is widely used in the characterization of proteins and DNA in dried blood.

Decoding the human ________ can be useful for diagnosing and treating genetic diseases.

Name two advantages and two disadvantages of mitochondrial DNA analysis compared to nuclear DNA analysis.

What is an advantage of working with short DNA fragments?

Small amounts of blood are best submitted to a crime laboratory:

Introduction

The Crime Scene

Physical Evidence

Crime Scene Reconstruction: Blood Stain Pattern Analysis

Death Investigation

Fingerprints

Forensic Biometrics

The Microscope

Firearms, Tool Marks, and Other Impressions

Matter, Light, and Glass Examination

Hairs and Fibers

Drugs

Forensic Toxicology

Metals, Paint, and Soil

Forensic Serology

Forensic Aspects of Fire and Explosion Investigation

Document Examination

Computer Forensics

Mobile Device Forensics

Filters

Exam 16: DNA: The Indispensable Forensic Science Tool

The building blocks of the DNA molecule are known as:

The synthesis of new DNA from existing DNA is known as hybridization.

Which statement about mitochondrial DNA is INCORRECT?

The sequence of ________ acids in a protein chain determines the shape and function of the protein.

Which statement about tandem repeats is NOT true?

Which statement regarding STRs is true?

The four bases associated with DNA are adenine, cytosine, guanine, and ________.

The molecular structure of DNA was deduced by:

A conventional STR profile emanating from a mixture of DNA from male donors yields four peaks or bands for each locus present. How many peaks or bands would you normally expect for each locus if a Y-STR profile is performed on the same sample?

Describe the process of DNA replication. What is the importance of DNA replication?

Assume that two strands of DNA have been separated and that the base sequence on one strand is ATGC. What is the sequence of bases on the second strand?

A short tandem repeat (STR)is a region of a DNA molecule that contains short segments consisting of 50-100 repeating base pairs.

Electrophoresis is widely used in the characterization of proteins and DNA in dried blood.

Decoding the human ________ can be useful for diagnosing and treating genetic diseases.

Name two advantages and two disadvantages of mitochondrial DNA analysis compared to nuclear DNA analysis.

What is an advantage of working with short DNA fragments?

Small amounts of blood are best submitted to a crime laboratory:

Introduction

The Crime Scene

Physical Evidence

Crime Scene Reconstruction: Blood Stain Pattern Analysis

Death Investigation

Fingerprints

Forensic Biometrics

The Microscope

Firearms, Tool Marks, and Other Impressions

Matter, Light, and Glass Examination

Hairs and Fibers

Drugs

Forensic Toxicology

Metals, Paint, and Soil

Forensic Serology

Forensic Aspects of Fire and Explosion Investigation

Document Examination

Computer Forensics

Mobile Device Forensics

Filters