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15
×
Forcibly removed hair is most likely to provide DNA because they have
cuticle
follicular tissue
scale patterns
the hair shaft
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15
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In the collection of fiber evidence, great care should be taken to..
avoid cross-contamination of evidence
vacuum each item
package all items together
shake off all garments to be sent for examination
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thief
Give points!
5
10
15
20
25
×
rocket
Go to first place!
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gift
Win 20 points!
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lifesaver
Give 15 points!
Oops!
15
×
What does burning wool smell like
burned hair
burned paper
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eraser
Reset score!
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rocket
Go to first place!
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×
fairy
Take points!
5
10
15
20
25
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baam
Lose 10 points!
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15
×
What are functions of hair
all of the responses
facilitation of evaporation of perspiration
regulation of body temperature
protection
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15
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Determining whether a hair sample originated from male or female, the MOST important factor is:
whether the hair was dyed
the length of the hair
whether the hair is bleached
the results of DNA analysis performed on the root structure
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15
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Which of the following properties should be examined when comparing 2 fibers
shape
texture
color
diameter
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15
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If hair does not have DNA, an expert witness is on best scientific footing when stating that...
a suspect hair comes from a particular animal species
his examination reveals that the hair is that of a male
the given hair comes from a specific person
the hair in question comes from a 21-year old
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15
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Hair can be best characterized as originating from an animal by examining
the hair shaft
its scale structure
the growth pattern
the medulla and cuticle
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seesaw
Swap points!
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magnet
Take 15 points!
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rocket
Go to first place!
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banana
Go to last place!
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15
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The cortex of hair derives its major forensic importance from the fact that it contains
dna
medullae
scales
pigments
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15
×
Which of the following is NOT a presumptive test for fibers?
density test
burn test
stain test
solvent test
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15
×
The portion of the hair containing its scales is best characterized by
the follicle
the cortex
the root
the cuticle
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15
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A fiber's microscopic appearance being ribbon-like in shape with twists at irregular intervals:
cotton
acrylic
nylon
polyester
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15
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Pigment granules that impart hair with color are found in the...
cuticle
medulla
cortex
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