Question 1

In determining whether a hair sample originated from a male or a female, the MOST important consideration is:

Accepted Answer

A)  the length of the hair. 
B)  the results of DNA analysis performed on the root structure. 
C)  whether the hair was dyed. 
D)  whether the hair is bleached. 
E)  whether the hair is curly or straight. 
A)  the length of the hair. 
B)  the results of DNA analysis performed on the root structure. 
C)  whether the hair was dyed. 
D)  whether the hair is bleached. 
E)  whether the hair is curly or straight. B

Question 2

Which type of crime is LEAST likely to be solved with the use of fiber evidence?

Accepted Answer

A)  breaking and entering 
B)  hit-and-run 
C)  kidnapping 
D)  sexual assault 
E)  bombing 
A)  breaking and entering 
B)  hit-and-run 
C)  kidnapping 
D)  sexual assault 
E)  bombing E

Question 3

The central canal running through many hairs is known as the:

Accepted Answer

A)  cuticle. 
B)  root. 
C)  cortex. 
D)  medulla. 
E)  shaft. 
A)  cuticle. 
B)  root. 
C)  cortex. 
D)  medulla. 
E)  shaft. D

Question 4

Synthetic fibers display ___________ because they are crystalline.

Accepted Answer

A)  high density 
B)  dispersive properties 
C)  infrared reflectance 
D)  flotation 
E)  birefringence 
A)  high density 
B)  dispersive properties 
C)  infrared reflectance 
D)  flotation 
E)  birefringence

Question 5

Explain the difference between natural and manufactured fibers.

Accepted Answer

Natural fibers are derived from plants o

Question 6

What type(s) of evidence may result from hit-and-run accidents?

Accepted Answer

A)  glass 
B)  fibers 
C)  hair 
D)  blood 
E)  all of the above 
A)  glass 
B)  fibers 
C)  hair 
D)  blood 
E)  all of the above

Question 7

Beard hairs are coarse and normally ________ in cross-section.

Accepted Answer

A)  triangular 
B)  ribbon-like 
C)  square 
D)  round 
E)  oval 
A)  triangular 
B)  ribbon-like 
C)  square 
D)  round 
E)  oval

Question 8

Which is a true statement about the fibers in the Williams case?

Accepted Answer

A)  They were similar to the clothes Williams was known to wear. 
B)  They were proven to come from Williams' bedroom. 
C)  They were matched to fibers from his car upholstery. 
D)  The investigators did probability calculations to establish the chance of these fibers being found in a particular location. 
E)  They were found on all the victims that were linked to Williams. 
A)  They were similar to the clothes Williams was known to wear. 
B)  They were proven to come from Williams' bedroom. 
C)  They were matched to fibers from his car upholstery. 
D)  The investigators did probability calculations to establish the chance of these fibers being found in a particular location. 
E)  They were found on all the victims that were linked to Williams.

Question 9

A regenerated fiber can be derived from:

Accepted Answer

A)  acetate. 
B)  polyester. 
C)  isoprene. 
D)  cotton or wood pulp. 
E)  rayon. 
A)  acetate. 
B)  polyester. 
C)  isoprene. 
D)  cotton or wood pulp. 
E)  rayon.

Question 10

In the Wayne Williams case, the fibers that proved to be the most crucial evidence were made of:

Accepted Answer

A)  acetate and nylon. 
B)  nylon and silk. 
C)  silk and acetate. 
D)  wool and cotton. 
E)  acrylate and mylar. 
A)  acetate and nylon. 
B)  nylon and silk. 
C)  silk and acetate. 
D)  wool and cotton. 
E)  acrylate and mylar.

Question 11

The medullary index of human hair is ________ the medullary index for most other animals.

Accepted Answer

A)  less than 
B)  greater than 
C)  the same as 
A)  less than 
B)  greater than 
C)  the same as

Question 12

The number of hair scales pointing towards the tip of the hair is ________ the number of hair scales pointing towards the hair follicle.

Accepted Answer

A)  greater than 
B)  the same as 
C)  less than 
A)  greater than 
B)  the same as 
C)  less than

Question 13

A fiber whose microscopic appearance includes being ribbon-like in shape (flat) with twists at irregular intervals is:

Accepted Answer

A)  silk. 
B)  linen. 
C)  polyester. 
D)  kapok. 
E)  cotton. 
A)  silk. 
B)  linen. 
C)  polyester. 
D)  kapok. 
E)  cotton.

Question 14

The presence of sheath cells on hair that has been pulled quickly from the head is ________ the presence of sheath cells on hairs that have been removed slowly from the scalp.

Accepted Answer

A)  greater than 
B)  the same as 
C)  less than 
A)  greater than 
B)  the same as 
C)  less than

Question 15

Describe the correlation between hair analysis and DNA typing.

Accepted Answer

Hair analysis and DNA typing are both me

Question 16

By far the most prevalent plant fiber is:

Accepted Answer

A)  linen. 
B)  hemp. 
C)  silk. 
D)  cotton. 
E)  Kapok. 
A)  linen. 
B)  hemp. 
C)  silk. 
D)  cotton. 
E)  Kapok.

Question 17

The conviction of Ennis Cosby's killer was aided by the DNA analysis on a hair that was crucial evidence in the case. This hair:

Accepted Answer

A)  belonged to the killer and was found in Cosby's car. 
B)  belonged to Cosby and was found clinging to the murderer's jacket. 
C)  belonged to the killer and was found on the body of the victim. 
D)  belonged to Cosby and was found in the suspect's car. 
E)  belonged to the killer and was found in his cap with which he had wrapped the murder weapon before discarding it. 
A)  belonged to the killer and was found in Cosby's car. 
B)  belonged to Cosby and was found clinging to the murderer's jacket. 
C)  belonged to the killer and was found on the body of the victim. 
D)  belonged to Cosby and was found in the suspect's car. 
E)  belonged to the killer and was found in his cap with which he had wrapped the murder weapon before discarding it.

Question 18

The monomers involved in the synthesis of proteins are:

Accepted Answer

A)  lipids. 
B)  sugars. 
C)  amino acids. 
D)  fatty acids. 
E)  starches. 
A)  lipids. 
B)  sugars. 
C)  amino acids. 
D)  fatty acids. 
E)  starches.

Question 19

Which of the following properties should NOT be examined when comparing two synthetic fibers?

Accepted Answer

A)  diameter 
B)  lengthwise striations 
C)  medullary index 
D)  presence or absence of delustering particles 
E)  all of the above 
A)  diameter 
B)  lengthwise striations 
C)  medullary index 
D)  presence or absence of delustering particles 
E)  all of the above

Question 20

List and explain the properties of fibers that are most useful for forensic comparison.

Accepted Answer

The properties of fibers that are most u

In determining whether a hair sample originated from a male or a female, the MOST important consideration is:

Which type of crime is LEAST likely to be solved with the use of fiber evidence?

The central canal running through many hairs is known as the:

Synthetic fibers display ___________ because they are crystalline.

Explain the difference between natural and manufactured fibers.

What type(s) of evidence may result from hit-and-run accidents?

Beard hairs are coarse and normally ________ in cross-section.

Which is a true statement about the fibers in the Williams case?

A regenerated fiber can be derived from:

In the Wayne Williams case, the fibers that proved to be the most crucial evidence were made of:

The medullary index of human hair is ________ the medullary index for most other animals.

The number of hair scales pointing towards the tip of the hair is ________ the number of hair scales pointing towards the hair follicle.

A fiber whose microscopic appearance includes being ribbon-like in shape (flat) with twists at irregular intervals is:

The presence of sheath cells on hair that has been pulled quickly from the head is ________ the presence of sheath cells on hairs that have been removed slowly from the scalp.

Describe the correlation between hair analysis and DNA typing.

By far the most prevalent plant fiber is:

The conviction of Ennis Cosby's killer was aided by the DNA analysis on a hair that was crucial evidence in the case. This hair:

The monomers involved in the synthesis of proteins are:

Which of the following properties should NOT be examined when comparing two synthetic fibers?

List and explain the properties of fibers that are most useful for forensic comparison.

Introduction

Securing and Searching the Crime Scene

Recording the Crime Scene

Collection of Crime-Scene Evidence

Physical Evidence

Death Investigation

Crime-Scene Reconstruction

Fingerprints

Firearms, Toolmarks, and Other Impressions

Bloodstain Pattern Analysis

Forensic Toxicology

Trace Evidence I: Hairs and Fibers

Trace Evidence Ii: Paint, Glass, and Soil

Biological Stain Analysis: DNA

Forensic Aspects of Fire and Explosion Investigation

Document Examination

Computer Forensics

Filters

Exam 11: Drugs

In determining whether a hair sample originated from a male or a female, the MOST important consideration is:

Which type of crime is LEAST likely to be solved with the use of fiber evidence?

The central canal running through many hairs is known as the:

Synthetic fibers display ___________ because they are crystalline.

Explain the difference between natural and manufactured fibers.

What type(s) of evidence may result from hit-and-run accidents?

Beard hairs are coarse and normally ________ in cross-section.

Which is a true statement about the fibers in the Williams case?

A regenerated fiber can be derived from:

In the Wayne Williams case, the fibers that proved to be the most crucial evidence were made of:

The medullary index of human hair is ________ the medullary index for most other animals.

The number of hair scales pointing towards the tip of the hair is ________ the number of hair scales pointing towards the hair follicle.

A fiber whose microscopic appearance includes being ribbon-like in shape (flat) with twists at irregular intervals is:

The presence of sheath cells on hair that has been pulled quickly from the head is ________ the presence of sheath cells on hairs that have been removed slowly from the scalp.

Describe the correlation between hair analysis and DNA typing.

By far the most prevalent plant fiber is:

The conviction of Ennis Cosby's killer was aided by the DNA analysis on a hair that was crucial evidence in the case. This hair:

The monomers involved in the synthesis of proteins are:

Which of the following properties should NOT be examined when comparing two synthetic fibers?

List and explain the properties of fibers that are most useful for forensic comparison.

Introduction

Securing and Searching the Crime Scene

Recording the Crime Scene

Collection of Crime-Scene Evidence

Physical Evidence

Death Investigation

Crime-Scene Reconstruction

Fingerprints

Firearms, Toolmarks, and Other Impressions

Bloodstain Pattern Analysis

Forensic Toxicology

Trace Evidence I: Hairs and Fibers

Trace Evidence Ii: Paint, Glass, and Soil

Biological Stain Analysis: DNA

Forensic Aspects of Fire and Explosion Investigation

Document Examination

Computer Forensics

Filters