Question 1

Which nitrogenous base is NOT found in DNA?

Accepted Answer

A) Thymine 
B) Cytosine 
C) Uracil 
D) Adenine 
A) Thymine 
B) Cytosine 
C) Uracil 
D) Adenine

Question 2

DNA analysts are able to examine samples containing as few as ________ cells for an STR profile.

Accepted Answer

A) 18 
B) 36 
C) 180 
D) 800 
A) 18 
B) 36 
C) 180 
D) 800

Question 3

A ________ is a threadlike structure in the cell nucleus along which the genes are located.

Accepted Answer

The answer of A ________ is a threadlike structure in...

Question 4

The individuality of an organism is determined by the organism's:

Accepted Answer

A) DNA nucleotide sequence. 
B) Nitrogenous bases. 
C) Amino acids. 
D) Environment. 
A) DNA nucleotide sequence. 
B) Nitrogenous bases. 
C) Amino acids. 
D) Environment.

Question 5

________ are male-specific and are useful for characterizing multiple-male DNA mixtures.

Accepted Answer

The answer of ________ are male-specific and are useful for...

Question 6

________ present in soil rapidly degrade DNA.

Accepted Answer

The answer of ________ present in soil rapidly degrade DNA....

Question 7

The amount of DNA material required for STR analysis is ________ the amount of DNA required for RFLP analysis.

Accepted Answer

A) The same as 
B) Greater than 
C) Less than 
D) None of the above 
A) The same as 
B) Greater than 
C) Less than 
D) None of the above

Question 8

The rate at which large DNA fragments move through the electrophoretic gel is ________ the rate at which small DNA fragments move through the same apparatus.

Accepted Answer

A) The same as 
B) Greater than 
C) Less than 
D) None of the above 
A) The same as 
B) Greater than 
C) Less than 
D) None of the above

Question 9

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
-Buccal cells

Accepted Answer

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

Question 10

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
-Multiplexing

Accepted Answer

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

Question 11

James Watson and Francis Crick are credited with discovering the structure of DNA.

Accepted Answer

A) True 
 B)False

Question 12

Buccal cells are derived from the inner cheek lining.

Accepted Answer

A) True 
 B)False

Question 13

________ is a technique for the separation of molecules through their migration on a support medium while under the influence of an electrical potential.

Accepted Answer

The answer of ________ is a technique for the separation...

Question 14

In which hereditary disease does abnormal hemoglobin differ from normal hemoglobin by only a single amino acid?

Accepted Answer

A) Phenylketonuria 
B) Hemophilia 
C) Sickle-cell anemia 
D) Albinism 
A) Phenylketonuria 
B) Hemophilia 
C) Sickle-cell anemia 
D) Albinism

Question 15

Amplifying DNA using the Thermal Cycler takes approximately:

Accepted Answer

A) 30 cycles. 
B) 4 cycles. 
C) 2 hours. 
D) 2 minutes. 
A) 30 cycles. 
B) 4 cycles. 
C) 2 hours. 
D) 2 minutes.

Question 16

A typical STR DNA type emanating from a single individual shows a ________-band pattern.

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 0 
A) 1 
B) 2 
C) 3 
D) 0

Question 17

STRs normally consist of repeating sequences of:

Accepted Answer

A) 13-17 bases. 
B) 18-2 bases. 
C) 3-7 bases. 
D) 8-12 bases. 
A) 13-17 bases. 
B) 18-2 bases. 
C) 3-7 bases. 
D) 8-12 bases.

Question 18

In DNA replication, polymerases:

Accepted Answer

A) Enable the strands to unwind from the helix. 
B) Help assemble the new DNA strands in proper base sequence. 
C) Separate the strands of the double helix. 
D) All of the above 
A) Enable the strands to unwind from the helix. 
B) Help assemble the new DNA strands in proper base sequence. 
C) Separate the strands of the double helix. 
D) All of the above

Question 19

List two advantages STRs have over restriction fragment length polymorphisms (RFLPs).

Accepted Answer

(should include points such as):
The sho

Question 20

The discriminating power of mtDNA is ________ the discriminating power of STR analysis.

Accepted Answer

A) Greater than 
B) The same as 
C) Less than 
D) None of the above 
A) Greater than 
B) The same as 
C) Less than 
D) None of the above

Which nitrogenous base is NOT found in DNA?

DNA analysts are able to examine samples containing as few as ________ cells for an STR profile.

A ________ is a threadlike structure in the cell nucleus along which the genes are located.

The individuality of an organism is determined by the organism's:

________ are male-specific and are useful for characterizing multiple-male DNA mixtures.

________ present in soil rapidly degrade DNA.

The amount of DNA material required for STR analysis is ________ the amount of DNA required for RFLP analysis.

The rate at which large DNA fragments move through the electrophoretic gel is ________ the rate at which small DNA fragments move through the same apparatus.

James Watson and Francis Crick are credited with discovering the structure of DNA.

Buccal cells are derived from the inner cheek lining.

________ is a technique for the separation of molecules through their migration on a support medium while under the influence of an electrical potential.

In which hereditary disease does abnormal hemoglobin differ from normal hemoglobin by only a single amino acid?

Amplifying DNA using the Thermal Cycler takes approximately:

A typical STR DNA type emanating from a single individual shows a ________-band pattern.

STRs normally consist of repeating sequences of:

In DNA replication, polymerases:

List two advantages STRs have over restriction fragment length polymorphisms (RFLPs).

The discriminating power of mtDNA is ________ the discriminating power of STR analysis.

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

Which nitrogenous base is NOT found in DNA?

DNA analysts are able to examine samples containing as few as ________ cells for an STR profile.

A ________ is a threadlike structure in the cell nucleus along which the genes are located.

The individuality of an organism is determined by the organism's:

________ are male-specific and are useful for characterizing multiple-male DNA mixtures.

________ present in soil rapidly degrade DNA.

The amount of DNA material required for STR analysis is ________ the amount of DNA required for RFLP analysis.

The rate at which large DNA fragments move through the electrophoretic gel is ________ the rate at which small DNA fragments move through the same apparatus.

James Watson and Francis Crick are credited with discovering the structure of DNA.

Buccal cells are derived from the inner cheek lining.

________ is a technique for the separation of molecules through their migration on a support medium while under the influence of an electrical potential.

In which hereditary disease does abnormal hemoglobin differ from normal hemoglobin by only a single amino acid?

Amplifying DNA using the Thermal Cycler takes approximately:

A typical STR DNA type emanating from a single individual shows a ________-band pattern.

STRs normally consist of repeating sequences of:

In DNA replication, polymerases:

List two advantages STRs have over restriction fragment length polymorphisms (RFLPs).

The discriminating power of mtDNA is ________ the discriminating power of STR analysis.

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