Quiz #5 for final Flashcards
(32 cards)
A(n) ____________ is an example of a 3-dimensional impression.
shoe impression in mud
When a shoe or tire deposits material onto a surface it creates a ___________ impression.
positive
The ___________ is the portion of the shoe that comes into contact with the _____ and is exposed to _____.
outsole/ground/wear
____________ is used to cast 3-D impressions.
dental stone
What are the two methods for comparing shoe and tire impressions?
Side by side and superimposition
The “Reebok” emblem on a shoe outsole would be considered a ___________.
class characteristic
shoe and tire impressions:
When conducting comparisons, the examiner should consider: (3)
the physical shape and size (c.c), wear characteristics, individual identifying characteristics
What shoeprint impression lifting technique would be best suited for a dust impression on a piece of paper?
electrostatic lifter
If there are ten (10) three-dimensional footwear impressions located at a crime scene, only three (3) representative impressions need to be cast with dental stone.
false
The minimum number of individual identifying characteristics required to make an identification is four (4).
false
Examination quality photographs must: (2)
be taken at a 90 degree angle
include multiple flash angles
DNA comes from what component of blood?
white blood cells
DNA is unique to every single living individual.
false
Biological males are __, while biological females are __.
XY, XX
STRs are coding regions in the DNA. they are …..
false
non-coding regions
A positive presumptive test means DNA is present in the sample.
false
The Takayama test is confirmatory for which body fluid?
blood
Christmas tree staining is confirmatory for what body fluid?
s
What are the four steps of the DNA process in the correct order? E, Q, A, P
- extraction
- quantification
- amplification
- profiling
What body fluids do NOT have a confirmatory test?
saliva
PCR only targets about 0.2 % of the genome
true
We can determine physical traits about an individual by looking at their STR profile.
false
PSA Card is confirmatory for which body fluid?
s
Scenarios in which DNA analysis would not be straightforward:
mixed dna, identical twins, complex mixtures, touch dna