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Hair Test Review

Total questions: 47

Worksheet time: 24mins

Name
Class
Date
1.
The protein that makes up hair is called _____
a)
ninhydrin
b)
pigments 
c)
medulla
d)
keratin
2.
The deepest layer of hair (compared to the lead of a pencil) is the ___
a)
medulla
b)
cortex
c)
cuticle
d)
keratin 
3.
The middle layer of a hair (compared to the wood of a pencil) is the __
a)
medulla
b)
cortex
c)
cuticle
d)
keratin
4.
The outside layer of a hair (compared to the ink on a pencil) is the ___
a)
medulla
b)
cortex
c)
cuticle
d)
keratin
5.
Which is NOT a characteristic of the medulla that varies and therefore should be observed?
a)
scales
b)
opacity 
c)
thickness
d)
continuity 
6.
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
7.
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
8.
In which phase of hair growth is hair actively growing?
a)
anagen
b)
catagen
c)
telogen
d)
melanen
9.
Which phase of hair growth usually lasts three to five years?
a)
anagen
b)
catagen
c)
telogen
d)
melanen
10.
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
11.
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
12.
Where is Nuclear DNA found in the hair?
a)
root
b)
 hair shaft
c)
tip
d)
medulla
13.
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
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.
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
16.
In order to determine if a hair is from an animal or human, one should divide the diameter of the...
a)
medulla by the entire hair
b)
medulla by the cortex
c)
cortex by the medulla
d)
cortex by the entire hair
17.
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
18.

comparison microscope

a)

the central core of a hair fiber

b)

material that connects an individual or thing to a certain group

c)

the tough outer covering of a hair composed of overlapping scales

d)

a compound microscope that allows the side by side comparison of the samples, such as of hair or fibers

19.

class evidence

a)

material that connects an individual or thing to a certain group

b)

bits of pigment found in the cortex of a hair

c)

the tough outer covering of a hair composed of overlapping scales

d)

small but measurable amounts of physical or biological material found at crime scene

20.

cortex

a)

the region of hair located outside of the medulla containing granules of pigments

b)

material that connects an individual 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

21.

cuticle

a)

the central core of a hair fiber

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

22.

hair follicle

a)

the actively growing root or base of hair containing DNA and living cells

b)

material that connects an individual 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

23.

individual evidence

a)

bits of pigment found in the cortex of a hair

b)

a kind of evidence that identifies a particular person or thing

c)

small but measurable amounts of physical or biological material found at crime scene

d)

the actively growing root or base of hair containing DNA and living cells

24.

keratin

a)

a type of fibrous protein that makes up the majority of the cortex of a hair

b)

bits of pigment found in the cortex of a hair

c)

the actively growing root or base of hair containing DNA and living cells

d)

the region of hair located outside of the medulla containing granules of pigments

25.
medulla
a)
the centrel core of a hair fiber
b)
bits of pigment found in the cortex of a hair
c)
the actively growing root or base of hair containing DNA and living cells
d)
the region of hair located outside of the medulla containing granules of pigments
26.

melanin granules

a)

the central core of a hair fiber

b)

the tough outer covering of a hair composed of overlapping scales

c)

bits of pigment found in the cortex of a hair

d)

the actively growing root or base of hair containing DNA and living cells

27.

Is this hair animal or Human?

a)

Animal

b)

Human

28.

Is this hair animal or Human?

a)

Animal

b)

Human

29.

Is this hair animal or Human?

a)

Animal

b)

Human

30.

Is this hair animal or Human?

a)

Animal

b)

Human

31.

Is this hair animal or Human?

a)

Animal

b)

Human

32.

What species did this hair come from?

a)

Rat

b)

Dog

c)

Deer

d)

Rabbit

33.

What species did this hair come from?

a)

Rat

b)

Dog

c)

Deer

d)

Rabbit

34.

What species did this hair come from?

a)

Rat

b)

Dog

c)

Deer

d)

Rabbit

35.

What species did this hair come from?

a)

Rat

b)

Cat

c)

Deer

d)

Rabbit

36.

What medulla pattern is shown?

a)

Absent

b)

Continuous

c)

Stacked

d)

Ladder

e)

Interrupted

37.

What medulla pattern is shown?

a)

Absent

b)

Continuous

c)

Stacked

d)

Ladder

e)

Interrupted

38.
A suspect sat on a couch and picked up dog hair from a friend's house.  He then attacked his victim and one of the dog hair fibers was  transferred during the attack.  What type of transfer is on the victim?
a)
primary
b)
secondary
c)
tertiary
39.
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
40.

DNA is never present on hair

a)

False

b)

True

41.

Is it possible to determine what body part hair evidence came from?

a)

yes

b)

no

42.

Can race origin be determined by hair?

a)

Yes

b)

no

43.

Can we tell if a hair was forcibly removed?

a)

Yes

b)

no

44.

Is it possible to determine the species of hair evidence without DNA?

a)

Yes

b)

no

45.

What are the tree stages of hair growth in order from start to end?

a)

Anagen, telogen, and catagen

b)

anagen, catagen, and telogen

c)

telogen, catagen, and anagen

d)

catagen, telogen, and anagen

46.

When processing hair found at a crime scene, we must determine if the origin is:

a)

human or animal

b)

human or reptile

c)

reptile or mammal

d)

human or alien

47.

Which phase of hair grown cycle does the hair fall out naturally?

a)

Telogen

b)

anagen

c)

catagen

d)

none of the above

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