WorksheetsFingerprints and Hair evidence
Total questions: 20
Worksheet time: 40mins
All loop patterns in a fingerprint have a ____ and a ____.
delta; core
whorl; delta
core; whorl
whorl; arch
The most common type of fingerprint pattern is the:
loop
whorl
arch
delta
What would be the best way of visualizing a fingerprint found on a glass bottle?
all of the answers are possibilities
dusting and lifting
iodine fuming
superglue
If undisturbed, a fingerprint left at the scene of a crime may last:
many years
24 hours
a week
less than a month
A fingerprint is composed mainly of:
water
salt
amino acids
organic compounds
The specific part of the skin that gives us our fingerprints is the:
papillae
epidermis
dermis
Radial loops of a fingerprint open towards the:
thumb
pinky or little finger
ring finger
index finger
Secretions from the skin come from glands that secrete:
all of the answers are secretions from the skin
oils
water
amino acids/proteins
Fingerprints are a/an _____ characteristic/evidence.
individual
class
trace
direct
There is a legal requirement in the United States on the number of points required for a fingerprint match.
True
False
To develop a latent fingerprint with powders, the powder adheres or sticks to both the:
water and fatty deposits
oil and water deposits
water and protein deposits
oil and protein deposits
Microscopic examination of hair can determine:
whether or not the hair is human or animal
the age of the person
the gender of the person
all of the answers are possibilities
Generally, a human hair can be distinguished from an animal hair by examining:
the medulla
the texture
the cortex
the color
Human hair found at a crime scene is most likely to be in the:
any of these phases
telogen growth phase
anagen growth phase
catagen growth phase
Nuclear DNA can be identified from:
the hair root or follicle
the hair shaft
both the hair root and the hair shaft
neither the hair root and the hair shaft
An unidentified hair is examined and found to have been dyed. The dye begins 3 cm from the root. This indicates that it was dyed:
three months ago
one month ago
two months ago
not possible to determine
The cuticle of the hair is best defined as:
outside covering, made of overlapping scales
inner layer made of keratin and embedded with pigment; also contains air sacs called cortical fusi
inside layer running down the center of the cortex
the root of the hair that contains DNA
Human hair can be characterized by having a medulla that is:
less than 1/3 of the hair diameter
greater than 1/2 of the hair diameter
absent of a scale pattern
colorless
The anagen phase of hair growth is best defined as:
hair is actively growing; lasts up to 5 years
hair is not growing; a resting phase
the follicle is getting ready to push the hair out; lasts two to six months
the follicle is undergoing mitosis
If hair is bleached, the pigment is removed a leaves a:
yellowish tint
reddish tint
blackish tint
brownish tint
