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WorksheetsForensic Hair
Total questions: 20
Worksheet time: 14mins
Name
Class
Date
1.
The protein that makes up hair is called _____
a)
ninhydrin
b)
pigments
c)
medulla
d)
keratin
2.
The smallest unit of textile material that has a length many times greater than its diameter is..
a)
keratin
b)
cuticles
c)
fibres
d)
chromatography
3.
The deepest layer of hair (compared to the lead of a pencil) is the ___
a)
medulla
b)
cortex
c)
cuticle
d)
keratin
4.
The middle layer of a hair (compared to the wood of a pencil) is the __
a)
medulla
b)
cortex
c)
cuticle
d)
keratin
5.
The outside layer of a hair (compared to the ink on a pencil) is the ___
a)
medulla
b)
cortex
c)
cuticle
d)
keratin
6.
Which is NOT a characteristic of the medulla that varies and therefore should be observed?
a)
scales
b)
opacity
c)
thickness
d)
continuity
7.
Which of the following is NOT one of the characteristics of the cuticle that varies and should be observed?
a)
scales
b)
continuity
c)
pigment
d)
thickness
8.
Which layer of hair is the most important component when determining which individual human the hair came from?
a)
medulla
b)
cortex
c)
cuticle
9.
The name for man-made fibres is:
a)
processed fibres
b)
synthetic fibres
c)
natural fibres
d)
modified fibres
10.
Which of the following is NOT one of the hair shapes in cross-section?
a)
square
b)
round
c)
oval
d)
crescent moon
11.
Animal hair roots are generally _____.
a)
spear shaped
b)
pear shaped
c)
round
d)
long and thin
12.
Where is Nuclear DNA found in the hair?
a)
root
b)
hair shaft
c)
tip
d)
medulla
13.
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
14.
When collecting hair as evidence, a detective should NOT do which of the following?
a)
Pluck
hairs from the suspect’s head
b)
Cut
hairs from the suspect’s head
c)
Collect
loose hairs from the suspect’s head
d)
A
detective should do all of the above
15.
Hair analysis may be used to determine all of the following except:
a)
manner
in which the hair was removed
b)
body
region from which the hair came from
c)
broad racial
background of the individual from which the hair came from
d)
identity of the
individual from which the hair came from
16.
Fibres that have spun together are called
a)
a textile
b)
yarn
c)
a mineral fiber
d)
a fibre
17.
When fibres are transferred directly from victim to suspect or suspect to victim, this is called:
a)
necessary transfer.
b)
direct transfer
c)
absolute transfer.
d)
None of these choices.
18.
Fibres are classified as either:
a)
natural fibres or synthetic fibres.
b)
polymers or synthetic fibres.
c)
acrylic fibres or plant fibres.
d)
olefins or synthetic fibres
19.
Natural fibres come from:
a)
animals.
b)
plants.
c)
minerals that are mined from the ground.
d)
All of these choices.
20.
The smallest unit of textile material that has a length many times greater than its diameter is..
a)
keratin
b)
cuticles
c)
fibres
d)
chromatography
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