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Hair and Fiber

Total questions: 50

Worksheet time: 30mins

Name
Class
Date
1.

What stage of hair growth is this hair in?

a)

Anagen phase

b)

Catagen phase

c)

Telogen Phase

d)

Can not be determined

2.

What is Loccard's Exchange Principle?

a)

Perpetrators always leave evidence behind.

b)

Every contact leaves a trace.

c)

All touches leave evidence.

d)

Long, violent confrontations leave evidence.

3.

What does a damaged hair root tell investigators?

a)

The hair was forcefully removed.

b)

The suspect was attacked.

c)

There was a struggle.

d)

The hair fell out of the person's head.

4.

What are the three layers of hair?

a)

Medulla, keratin, cortex

b)

Cuticle, medulla, keratin

c)

Keratin, cuticle, cortex

d)

Medulla, Cortex, and Cuticle

5.

Fiber does NOT fall into what type of evidence?

a)

Individual

b)

Class

c)

Trace

d)

Circumstantial

6.

A natural pigment found in skin

a)

Melanin

b)

Cortical Fusi

c)

Telogen Phase

d)

Cortex

7.

Irregularly shaped air spaces in the cortex

a)

Keratin

b)

Cortical Fusi

c)

Medulla

d)

Catagen Phase

8.

Material that connects an individual or thing to a certain group.

a)

Class Evidence

b)

Individual Evidence

c)

Circumstantial Evidence

9.

The region of a hair located outside of the medulla containing granules of pigment. (wood part of pencil)

a)

Cuticle

b)

Medulla

c)

Cortex

10.

The tough outer covering of a hair composed of overlapping scales. (outer part of pencil)

a)

Cortex

b)

Cuticle

c)

Medulla

11.

The actively growing root or base of a hair containing DNA and living cells.

a)

Root

b)

Hair Follicle

c)

Keratin

d)

Medulla

12.
Where is Nuclear DNA found in the hair?
a)
root
b)
 hair shaft
c)
tip
d)
medulla
13.
Which phase of hair growth is the intermediate period of hair growth and lasts about three weeks?
a)
anagen
b)
catagen
c)
telogen
d)
melanen
14.
In which phase of hair growth is hair actively growing?
a)
anagen
b)
catagen
c)
telogen
d)
melanen
15.
The deepest layer of hair (compared to the lead of a pencil) is the ___
a)
medulla
b)
cortex
c)
cuticle
d)
keratin 
16.
Hair color comes from a pigment called
a)
Hair dye
b)
Melanin
c)
Paint
d)
Genes
17.
Hair is helpful in solving old crimes because…
a)
hair on a suspect never changes
b)
hair always contains DNA evidence
c)
hair takes little room to store in evidence closets
d)
hair does not easily decompose
18.
The following medullary pattern is called
a)
fragmented 
b)
continuous
c)
interrupted
19.
The hair shaft is composed of what important protein?
a)
Cellulose 
b)
Chitin
c)
Peptidoglycan
d)
Keratin
20.
Number 2 is pointing to what structure of the hair?
a)
Cortex
b)
Medulla
c)
Cuticle
d)
None of These
21.

Cortex is at the core of the hair shaft

a)

True

b)

False

22.

The hair cuticle is on the inside of the hair shaft

a)

True

b)

False

23.

Hair is considered

a)

2ndary transfer

b)

Primary transfer

c)

3rd transfer

d)

useless transfer

24.

When fibers are transferred straight from suspect to victim or victim to suspect, this is called

a)

Necessary transfer

b)

Absolute transfer

c)

Indirect transfer

d)

Direct transfer

25.

The main functions of hair:

a)

Regulate body temperature

b)

Protect against harm

c)

Social interactions

d)

All of the above

26.

What cuticle type is in the picture?

a)

Coronal

b)

Imbricate

c)

Spinous

27.
The hair follicle is dormant and hairs are easily lost during which stage of the hair life cycle?
a)
Anagen
b)
Telogen
c)
Catagen
d)
Metagen
28.
The transitional or regressive stage that lasts a few weeks during which hair growth slows is called...?
a)
Anagen
b)
Telogen
c)
Catagen
d)
Metagen
29.

What scale type do we call number 2?

a)

Imbricate

b)

Spinous

c)

Coronal

d)

Crescent

30.
Refers to small evidence like hairs of fibers
a)
physical evidence
b)
trace evidence
c)
suspect
d)
witness
31.
Define the "Locard's Principle."
a)
the scientific examination of evidence in a criminal investigation
b)
states that criminals always take a trace of something with them or leave a trace of something behind at the scene of the crime
c)
a type of evidence
d)
the person who runs the Locard School
32.
The middle layer of a hair (compared to the wood of a pencil) is the __
a)
medulla
b)
cortex
c)
cuticle
d)
keratin
33.
Which phase of hair growth usually lasts three to five years?
a)
anagen
b)
catagen
c)
telogen
d)
melanen
34.

What medulla pattern is shown?

a)

Absent

b)

Continuous

c)

Stacked

d)

Ladder

e)

Interrupted

35.
hair follicle
a)
the actively growing root or base of hair containing DNA and living cells
b)
material that connects an indivisual or thing to a certain group
c)
a type of fibrous protein that makes up the majority of the cortex of a hair
d)
the tough outer covering of a hair composed of overlapping scales
36.

Can we tell if a hair was forcibly removed?

a)

Yes

b)

no

37.
The smallest indivisible unit of a textile is a...
a)
Fiber
b)
Fabric
c)
Yarn
d)
Thread
38.
Fibers are considered what kind of evidence? 
a)
Individual
b)
Class
c)
Direct
d)
Indirect
39.
Which phase of hair growth is the final phase of hair growth that results in hair loss and lasts about three months?
a)
anagen
b)
catagen
c)
telogen
d)
melanen
40.

What medulla pattern is shown?

a)

Absent

b)

Continuous

c)

Stacked

d)

Ladder

e)

Interrupted

41.
Hair is helpful in solving old crimes because…
a)
hair on a suspect never changes
b)
hair always contains DNA evidence
c)
hair takes little room to store in evidence closets
d)
hair does not easily decompose
42.
trace evidence
a)
small but measurable amounts of physical or biological material found at crime scene
b)
the tough outer covering of a hair composed of overlapping scales
c)
the centrel core of a hair fiber
d)
the actively growing root or base of hair containing DNA and living cells
43.

Hair is produced from a structure called the hair (a)  

44.

The bottom portion of hair in which nuclear DNA can be found.

a)

Medulla

b)

Root

c)

Cuticle

d)

Cortex

45.

The instrument used to analyze Hair & Fiber Evidence...

a)

Microscope

b)

Telescope

c)

Magnifying Lens

d)

Tape

46.
The central core of the hair is called the...?
a)
Medulla
b)
Cuticle
c)
Cortex
d)
Shaft
47.
You can get DNA from a piece of hair that does not have the root attached.
a)
True
b)
False
48.

Which structure of hair is a clear, outer covering made of tough, overlapping scales?

a)

medulla

b)

cuticle

c)

cortex

d)

pigment granules

49.
Number 1 is pointing to what structure of the hair?
a)
Cortex
b)
Medulla
c)
Cuticle
d)
None of These
50.
Number 3 is pointing to what structure of the hair?
a)
Cortex
b)
Medulla
c)
Cuticle
d)
None of These

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