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WorksheetsHair & Fiber 2020 Review
Total questions: 63
Worksheet time: 39mins
Name
Class
Date
1.
The picture shows a __________ hair.
a)
human
b)
animal
2.
What kind of hair is this?
a)
Human
b)
Animal
3.
Did this hair fall out naturally, or was it forcibly removed?
a)
Fell out naturally
b)
Was forcibly removed
4.
Is this hair animal or Human?
a)
Animal
b)
Human
5.
Is this hair animal or Human?
a)
Animal
b)
Human
6.
Is this hair animal or Human?
a)
Animal
b)
Human
7.
Is this hair animal or Human?
a)
Animal
b)
Human
8.
Is this hair animal or Human?
a)
Animal
b)
Human
9.
What species did this hair come from?
a)
Rat
b)
Dog
c)
Deer
d)
Rabbit
10.
What species did this hair come from?
a)
Rat
b)
Dog
c)
Deer
d)
Rabbit
11.
What species did this hair come from?
a)
Rat
b)
Cat
c)
Deer
d)
Rabbit
12.
What medulla pattern is shown?
a)
Absent
b)
Continuous
c)
Stacked
d)
Ladder
13.
What medulla pattern is shown?
a)
Absent
b)
Continuous
c)
Stacked
d)
Ladder
e)
Interrupted
14.
What medulla pattern is shown?
a)
Absent
b)
Continuous
c)
Stacked
d)
Ladder
e)
Interrupted
15.
What medulla pattern is shown?
a)
Absent
b)
Continuous
c)
Stacked
d)
Ladder
e)
Interrupted
16.
What medulla pattern is shown?
a)
Absent
b)
Continuous
c)
Stacked
d)
Ladder
e)
Interrupted
17.
What medulla pattern is shown?
a)
Absent
b)
Continuous
c)
Stacked
d)
Ladder
e)
Interrupted
18.
The protein that makes up hair is called _____
a)
ninhydrin
b)
pigments
c)
medulla
d)
keratin
19.
The deepest layer of hair (compared to the lead of a pencil) is the ___
a)
medulla
b)
cortex
c)
cuticle
d)
keratin
20.
The middle layer of a hair (compared to the wood of a pencil) is the __
a)
medulla
b)
cortex
c)
cuticle
d)
keratin
21.
The outside layer of a hair (compared to the ink on a pencil) is the ___
a)
medulla
b)
cortex
c)
cuticle
d)
keratin
22.
The name for man-made fibers is:
a)
processed fibers
b)
synthetic fibers
c)
natural fibers
d)
modified fibers
23.
To determine the medullary index, you would ______.
a)
measure the diameter of the medulla and divide it by the diameter of the hair
b)
measure the diameter of the hair and divide it by the diameter of the medulla
c)
measure the length of the medulla and divide it by the length of the hair
d)
measure the diameter of the medulla and divide it by the diameter of the cortex
24.
What is the medullary index for a human hair?
a)
generally less than 1/3
b)
generally equal to 1/3
c)
generally more than 1/3
d)
generally greater than 1/2
25.
In which phase of hair growth is hair actively growing?
a)
anagen
b)
catagen
c)
telogen
d)
melanen
26.
Which phase of hair growth usually lasts three to five years?
a)
anagen
b)
catagen
c)
telogen
d)
melanen
27.
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
28.
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
29.
Where is Nuclear DNA found in the hair?
a)
root
b)
hair shaft
c)
tip
d)
medulla
30.
What can be said about hair that is in the anagen phase, is no longer in the scalp and has follicular tissue attached?
a)
the hair has been forcibly removed
b)
the hair fell out of the scalp
c)
the hair has been bleached to often and has died
d)
the hair died from being too dry
31.
We know hair is from a human if…
a)
The medullary index is 0.5 or greater
b)
The medullary index is 0.33 or less
c)
The cuticle is coronal
d)
The medulla is fragmented
32.
Why type of medulla is frequently found in the hairs of Native Americans and Asians?
a)
Continuous
b)
Interrupted
c)
Fragmented
d)
Solid
33.
Fibers are classified as either:
a)
natural fibers or synthetic fibers.
b)
polymers or synthetic fibers.
c)
acrylic fibers or plant fibers.
d)
olefins or synthetic fibers
34.
Natural fibers come from:
a)
animals.
b)
plants.
c)
minerals that are mined from the ground.
d)
All of these choices.
35.
Which scale pattern is indicated?
a)
Coronal
b)
Spinous
c)
Imbricate
d)
None of these
36.
When evidence can only be associated with a group and never with a single source, that evidence is said to be:
a)
Individual evidence
b)
Class evidence
c)
Group categories
d)
Group characteristics
37.
Which of the items above contains the pigment granules that give hair its color?
a)
A
b)
B
c)
C
38.
Which scale pattern is indicated?
a)
Coronal
b)
Spinous
c)
Imbricate
d)
None of these
39.
Which scale pattern is indicated?
a)
Coronal
b)
Spinous
c)
Imbricate
d)
None of these
40.
Which of the letters above represents the medulla?
a)
A
b)
B
c)
C
41.
Which part of the hair is made of overlapping scales that make up the outside covering?
a)
keratin
b)
cuticle
c)
medulla
d)
cortex
42.
What pattern does the medulla above show?
a)
intermittent
b)
fragmented
c)
continuous
d)
imbricate
43.
Which scale pattern identifies human hair?
a)
Imbricate
b)
Coronal
c)
Spinous
d)
None of these
44.
Continuous, interrupted, fragmented and absent are all patterns of
a)
the cuticle
b)
the cortex
c)
the hair shaft
d)
the medulla
45.
Hair is removed from a person during a struggle. Hairs that were in what phase of hair growth are most likely to provide the crime scene technician with DNA?
a)
anagen
b)
catagen
c)
telogen
d)
they all provide DNA
46.
hair that is dying and is ready to fall out is in the
a)
anagen phase
b)
telogen phase
c)
catagen phase
47.
Is this hair from an animal or human?
a)
Human
b)
Animal
48.
Number 2 is pointing to what structure of the hair?
a)
Cortex
b)
Medulla
c)
Cuticle
d)
None of These
49.
This is a picture of a:
a)
Human Hair
b)
Animal Hair
c)
Carpet fiber
d)
Man-made fiber
50.
Did this hair fall out naturally, or was it forcibly removed?
a)
Fell out naturally
b)
Was forcibly removed
51.
Is this fiber natural or synthetic?
a)
Natural
b)
Synthetic
c)
Impossible to Tell
52.
Is this fiber natural or synthetic?
a)
Natural
b)
Synthetic
c)
Impossible to Tell
53.
Hair that is absent a medulla, light brown in color and has an oval shaped cross section is from what group?
a)
Mongoliod
b)
Caucasoid
c)
Negriod
d)
Noneasiod
54.
Hair that is curly with large cortex pigment granules and has an crescent shaped cross section is from what group?
a)
Mongoliod
b)
Caucasoid
c)
Negriod
d)
Noneasiod
55.
The smallest unit of textile material that has a length many times greater than its diameter is..
a)
keratin
b)
cuticles
c)
fibers
d)
chromatography
56.
Which is NOT a characteristic of the medulla that varies and therefore should be observed?
a)
scales
b)
opacity
c)
thickness
d)
continuity
57.
Small sacs of air found within the cortex are called...?
a)
central embolism
b)
cortical fusi
c)
air granules
d)
oval bodies
58.
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
59.
Hair with a round cross section and a large diameter is classified as...?
a)
Asian
b)
African
c)
European
60.
The burning of what type of Fiber resulted in white smoke-
a)
Natural
b)
Synthetic
61.
The burning of what type of Fiber resulted in thick black smoke.
a)
Natural
b)
Synthetic
62.
The burning of what type of Fiber resulted in a hard bead that could not be crushed.
a)
Natural
b)
Synthetic
63.
The burning of what type of Fiber resulted in ash.
a)
Natural
b)
Synthetic
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