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Hair And Fibers
Test Description: Hair and Fibers review
Instructions: Answer all questions to get your test result.
1) The shaft of the hair is considered class evidence in a trial.
A
true
B
false
2) Hair is composed mostly of a protein called cellulose.
A
true
B
false
3) All hairs on a persons head is identical.
A
false
B
true
4) Hair can provide clues of someones ancestry.
A
true
B
false
5) Hair can be used to determine_______.
A
diet
B
geographic history
C
drug habits
D
all of the above
6) Which part(s) of a hair can be analyzed for nuclear DNA?
A
all of the above
B
shaft
C
medulla
D
follicle
7) Animal hair can be distinguished from human hair because animal hair
A
has a smaller medulla index than human hair and no cortex
B
has a greater medullary index and more variation in the cuticle patterns
C
always have a continuous medulla pattern
D
does not have a cuticle
8) Which of the following is most likely a result of hair bleaching?
A
thickened cells on a cuticle
B
oxidized hair and damaged dna
C
increased numbers of disulfide bonds
D
a more triangular cross section
9) Natural fibers can be harvested from_____.
A
plants and animals
B
only from animals
C
only from plants
D
plants, animals, and minerals
10) All of the following are characteristics of synthetic fibers except____.
A
made from plants, animals, and minerals.
B
man made
C
they are used in the production of carpet fibers
11) This is the most common type of plant fiber
A
nylon
B
cotton
C
wool
12) this is the most common animal fiber
A
cotton
B
plant
C
wool
*select an answer for all questions
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