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WorksheetsFiber and Hair Analysis
Total questions: 20
Worksheet time: 13mins
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)
fibers
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.
The name for man-made fibers is:
a)
processed fibers
b)
synthetic fibers
c)
natural fibers
d)
modified fibers
7.
Which is NOT a characteristic of the medulla that varies and therefore should be observed?
a)
scales
b)
opacity
c)
thickness
d)
continuity
8.
Which of the following is NOT one of the hair shapes in cross-section?
a)
square
b)
round
c)
oval
d)
crescent moon
9.
In which phase of hair growth is hair actively growing?
a)
anagen
b)
catagen
c)
telogen
d)
melanen
10.
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
11.
Where is Nuclear DNA found in the hair?
a)
root
b)
hair shaft
c)
tip
d)
medulla
12.
Fibers that have spun together are called
a)
a textile
b)
yarn
c)
a mineral fiber
d)
a fiber
13.
When fibers 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.
14.
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
15.
Natural fibers come from:
a)
animals.
b)
plants.
c)
minerals that are mined from the ground.
d)
All of these choices.
16.
What is individual evidence?
a)
Evidence that can isolate or exclude a or group of people as a suspect.
b)
Evidence that is unique and can only be traced to one person.
c)
A video recording or witness testimony
d)
evidence that comes from living things
17.
If a hair contains DNA what kind of evidence does it become?
a)
Class Evidence
b)
Direct Evidence
c)
Individual Evidence
d)
Tampered Evidence
18.
wool is a
a)
Plant Fiber
b)
Animal Fiber
c)
Mineral Fiber
d)
Synthetic Fiber
19.
What is class evidence?
a)
Evidence that can isolate or exclude a or group of people as a suspect.
b)
Evidence that is unique and can only be traced to one person.
c)
A video recording or witness testimony
d)
evidence that comes from living things
20.
The BEST teacher at JCHS is ........?
a)
Coach Graybill
b)
Dr. Harty
c)
Mrs. Martin
d)
Mr. Cooper
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