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Forensics Unit 4 Hair Only

Total questions: 83

Worksheet time: 1hrs 3mins

Name
Class
Date
1.
When evidence can only be associated with a group and never with a single source, that evidence is said to possess:
a)
Class categories
b)
Class characteristics
c)
Group categories
d)
Group characteristics
2.
When evidence can only be associated with a group and never with a single source, that evidence is said to possess:
a)
Class categories
b)
Class characteristics
c)
Group categories
d)
Group characteristics
3.
Which scale pattern identifies human hair?
a)
Imbricate
b)
Coronal
c)
Spinous
d)
None of these
4.
The most important structure for the individualization of hair (identity).
a)
Medulla
b)
Cuticle
c)
Cortex
d)
Follicle
5.
Using the pencil analogy, which structure corresponds to the paint on the surface?
a)
Follicle
b)
Cortex
c)
Cuticle
d)
Medulla
6.
Using the pencil analogy, which structure corresponds to the wood?
a)
Follicle
b)
Cortex
c)
Cuticle
d)
Medulla
7.
Using the pencil analogy, which structure corresponds to the lead?
a)
Follicle
b)
Cortex
c)
Cuticle
d)
Medulla
8.
Which scale pattern is indicated?
a)
Coronal
b)
Spinous
c)
Imbricate
d)
None of these
9.
Which scale pattern is indicated?
a)
Coronal
b)
Spinous
c)
Imbricate
d)
None of these
10.
Which scale pattern is indicated?
a)
Coronal
b)
Spinous
c)
Imbricate
d)
None of these
11.
The central core of the hair is called the...?
a)
Medulla
b)
Cuticle
c)
Cortex
d)
Shaft
12.
Hair with a round cross section and a large diameter is classified as...?
a)
Asian
b)
African
c)
European
13.
Which gland secretes oil and causes hair to be oily?
a)
Sebaceous
b)
Adrenal
c)
Pineal
d)
Eccrine
14.
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
15.
The main purpose of hair is to:
a)
Protect against sunlight
b)
Decrease friction
c)
Aid in sensory
d)
Regulate body temperature
16.
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
17.
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
18.
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
19.
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
20.
The hair shaft is composed of what important protein?
a)
Cellulose 
b)
Chitin
c)
Peptidoglycan
d)
Keratin
21.
The following medulla pattern is called
a)
fragmented 
b)
continuous
c)
interrupted
22.
comparison microscope
a)
a compound microscope that allows the side by side comparison of the samples, such as of hair or fibers
b)
material that connects an indivisual or thing to a certain group
c)
the tough outer covering of a hair composed of overlapping scales
d)
the centrel core of a hair fiber
23.
cortex
a)
the region of hair located outside of the medulla containing granules of pigments
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
24.
cuticle
a)
the tough outer covering of a hair composed of overlapping scales
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 centrel core of a hair fiber
25.
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
26.
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
27.
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
28.

Which statement is true? 
mtDNA   ....

a)
links an individual with male family members 
b)
is individual evidence
c)

is useful with old and degraded remains

d)
is very fragile and does not preserve well
29.
The oldest part of the hair is the:
a)
Middle
b)
Tip
c)
Root
d)
Shaft
30.
What kind of medulla is this?
a)
Fragmented
b)
Continuous
c)
Interrupted/Intermittent
d)
There is no medulla - Absent
31.
hair always contains DNA
a)
true
b)
false
32.
How much does hair grow every month on average?
a)
1 cm
b)
1 mm
c)
1 "
d)
1dm
33.

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

a)
less than
b)

greater than

c)

the same as

34.
The protein that makes up hair is called _____
a)
ninhydrin
b)
pigments 
c)
medulla
d)
keratin
35.

A

a)

Cuticle

b)

Hair Follicle

c)

Hair Bulb

d)

Cortex

e)

Medulla

36.

D

a)

Cuticle

b)

Hair Follicle

c)

Hair Bulb

d)

Cortex

e)

Medulla

37.

B

a)

Cuticle

b)

Hair Follicle

c)

Hair Bulb

d)

Cortex

e)

Medulla

38.

C

a)

Cuticle

b)

Hair Follicle

c)

Hair Bulb

d)

Cortex

e)

Medulla

39.

This photo is of....

a)

Hair Strand

b)

Hair Bulb

c)

Hair in Follicle

40.

This photo is of....

a)

Hair Strand

b)

Hair Bulb

c)

Hair in Follicle

41.

This photo is of....

a)

Hair Strand

b)

Hair Bulb

c)

Hair in Follicle

42.

A

a)

Hair Shaft

b)

Hair Root

c)

Hair Follicle

d)

Arrector Pili Muscle

e)

Hair Bulb

43.

Is this hair from an animal or human?

a)

Human

b)

Animal

44.

Cuticle Pattern

a)

Imbricate

b)

Coronal

c)

Spinous

45.

Cuticle Pattern

a)

Imbricate

b)

Coronal

c)

Spinous

46.

Cuticle Pattern

a)

Imbricate

b)

Coronal

c)

Spinous

47.

Cuticle Pattern

a)

Imbricate

b)

Coronal

c)

Spinous

48.

Label the parts of the microscope

a)

Nosepiece

b)

Illuminator

c)

Base

d)

Fine Focus

e)

Course Focus

f)

Objective lens

g)

Stage

h)

Arm

i)

Eyepiece

1
2
3
4
5
6
7
8
9
1)
2)
3)
4)
5)
6)
7)
8)
9)
49.

Which is NOT a scale pattern?

a)

Spinous

b)

Imbricate

c)

Coronal

d)

Mandual

50.

Label the missing parts

a)

Papilla

b)

Keratin

c)

Cuticle

d)

Medulla

e)

Ovoid body

1
2
3
1)
2)
3)
51.

A pigment that gives hair its color.

a)

Melanin

b)

Medulla

c)

Keratin

d)

Papilla

52.

Cuticle Pattern

a)

Imbricate

b)

Coronal

c)

Spinous

53.

Cuticle Pattern

a)

Imbricate

b)

Coronal

c)

Spinous

54.

What type of cuticle is shown?

a)

Imbricate

b)

Spinous

c)

Coronal

d)

I have no idea

55.

What type of cuticle is shown?

a)

Imbricate

b)

Spinous

c)

Coronal

d)

I have no idea

56.

Which type of medulla is shown?

a)

Fragmented

b)

Uniserial

c)

Lattice

d)

Vacuolated

57.

Which of the following most likely comes from a human?

a)
b)
c)
d)
58.

What type of medulla does this hair have?

a)

Continuous

b)

Fragmented

c)

Absent

d)

Stacked

59.
Human or nonhuman hair?
a)
human 
b)
nonhuman
60.
Diameter of the medulla is 0.2 and diameter of the hair is 0.4.  What is the medullary index?
a)
2.5
b)
0.5
c)
0.1
d)
cannot be determined
61.
The following medulla pattern is called
a)
fragmented 
b)
continuous
c)
interrupted
62.

The picture shows a __________ hair.

a)

human

b)

animal

63.

What kind of hair is this?

a)

Human

b)

Animal

64.
The medullary index of a hair is 0.29.  Human or non-human?
a)
human
b)
non-human
c)
cannot be determined
65.
What cuticle pattern is shown?
a)
imbricate
b)
spinous
c)
coronal
66.

The idea that with any contact between two items there will be transfer is known as _____

a)

physical evdience

b)

Locard's exchange principle

c)

Forensic exchange principle

d)

the law of forensics

67.

Which of the following is an example of trace evidence?

a)

Footprint

b)

Fingerprint

c)

Hair

d)

Blood

68.

Hair is what type of evidence?

a)

Class

b)

Individual

c)

unknown

d)

all of the above

69.

DNA is never present on hair

a)

False

b)

True

70.

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

a)

yes

b)

no

71.

Can we tell if a hair was forcibly removed?

a)

Yes

b)

no

72.

How many approximate hair follicles on a human head are there?

a)

100,000

b)

1 million

c)

60,000

d)

1000

73.

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

a)

Yes

b)

no

74.

Humans lose approximately how many hair per day?

a)

100

b)

1000

c)

50

d)

5

75.

Which number in the diagram represents the cuticle?

a)

A

b)

D

c)

B

d)

F

76.

Which number in the diagram represents the medulla?

a)

C

b)

A

c)

B

d)

D

77.

Which number in the diagram represents the cortex?

a)

B

b)

A

c)

C

d)

D

78.

What medullary pattern is represented in the diagram?

a)

Fragmented

b)

interupted

c)

continuous

d)

not visible

79.

The growth cycle of human hair ranges from?

a)

2 to 6 years

b)

1 to 2 years

c)

3 to 6 months

d)

20 years

80.

What type of medulla pattern is shown here?

a)

continuous

b)

fragmented

c)

stacked

d)

interupted

81.

What are the three cuticle patterns?

a)

Coronal, spinous, imbricate

b)

flowery, circular, triangular

c)

square, round, diamond

82.

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

83.

What types of DNA can be found on the hair?

a)

Mitochondrial

b)

nuclear

c)

Both mitochondrial and nuclear

d)

none

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