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WorksheetsHair Evidence Review
Total questions: 20
Worksheet time: 10mins
The central core of the hair is called the...?
Medulla
Cuticle
Cortex
Shaft
The main purpose of hair is to:
Protect against sunlight
Aid in sensory
Regulate body temperature
When being compared to a wooden pencil, which part of hair represents the lead?
medulla
cortex
cuticle
follicular tag
We know hair is from a human if the Medullary Index (MI) …
The medullary index is 0.5 or greater
The medullary index is 0.33 or less
The cuticle is coronal
The medulla is fragmented
Hair is helpful in solving old crimes because…
hair on a suspect never changes
hair ALWAYS contains DNA evidence
hair takes little room to store in evidence closets
hair does not easily decompose (break down)
The hair shaft is composed of what important protein?
Cellulose
Chitin
Peptidoglycan
Keratin
Hair is what type of evidence without the follicle?
Class
Individual
unknown
all of the above
DNA is NEVER present on hair
False
True
Is it possible to determine what body part hair evidence came from?
Yes
No
Is it possible to determine the species (whether its animal or human) of hair evidence without DNA?
Yes
No
Humans lose approximately how many hair per day?
10
100
1000
Which letter in the diagram represents the cuticle?
A
B
C
D
Which letter in the diagram represents the medulla?
A
B
C
D
Where is Nuclear DNA found in the hair?
follicle
hair shaft
tip
medulla
What does a damaged hair root tell investigators?
The hair fell out of the person's head.
The hair was forcefully removed.
The actively growing root or base of a hair containing DNA and living cells.
Root
Hair Follicle
Keratin
Medulla
Is this hair from an animal or human?
Human
Animal
Number 2 is pointing to what structure of the hair?
Cortex
Medulla
Cuticle
None of These
Which of the following is NOT one of the pore shapes that creates different hair textures?
square
round
oval
crescent moon
Hair is what type of evidence with the follicle?
Class
Individual
unknown
all of the above
