chapter quiz
A typical STR DNA type emanating from a single individual shows a _____ band pattern
2
The presence or absence of how many antigens determine an individual's blood type in...
2
Which of the following is not part of the composition of paint
Adhesive
The technology of DNA typing has its beginnings in 1985 with the work of whom
Alec Jeffreys
What is an advantage of working with short DNA fragments
All of the above
Which of the following is not a synthetic fiber
All of the above are synthetic
the stage of hair growth do NOT include which of the following
Analgesic
Which component of DNA forms the backbone of the molecule
Both A & C
A cast of a hair surface can be made using
Clear nail polish and softened vinyl
The layers of the hair shaft are the ___, the ___, and the ___
Cuticle; cortex; medulla
The individuality of an organism is determined by the organism's what
DNA nucleotide sequence
Flotation is a method used by scientists to determine what abt a particle od glass
Density
Automobile finishes typically contain which layer
Electrocoat primer, color coat, &clearcoat
Glass fragments removed from a single sheet of plate have uniform density or refractive index value
False
If soil is found adhering to an object, the investigator should remove the soil particles...
False
Pyrolysis gas chromatography is not useful in paint analysis
False
Which of the following is not a layer of the hair shaft
Follicle
The number of hair scales pointing toward the tip of the hair is ___ the number of ...
Greater than
which would produce fingerprints of the fibers
Infrared spectrophotometry
Which of the following is true of Pyrex glass
It is made with the additional of boron oxide
The medullary index of human hair is ___ the medullary index for most other animals
Less than
A hot-stage microscope or the GRIM 3 is used to determine the___ of glass fragments
Refractive index
What are the 2 most important physical properties of forensic...
Refractive index and density
What is the main ingredient in ordinary glass
Sand
Which statement about tandem repeats is not true
They are of no forensic value
Beard hairs are coarse and normally what shape in cross-section
Triangular
Buccal cells are derived from the inner cheek lining
True
STR analysis is the most successful & widely used for DNA- profiling procedure
True
The cortex derives its major forensic importance from the fact that it gives hair its color
True
Then tempered glass breaks, it does not shatter
True
info from the human genome project will
all of the above
which of the following properties should be examined when comparing 2 fibers
all of the above
why has STR analysis replaced other DNA typing techniques
all of the above
Eye Appeal
basecoat
Who deduced the molecular structure of DNA?
both B and C
which blood components are directly pertinent to the forensic aspects of blood identification
both B and C
hair can be characterized as originating fin an animal by examining
both the medulla an cuticle
It is a virtual certainty that two fabrics share a common origin if their fibers:
can be fitted together at their torn edges
A regenerated fiber can be derived from which of the following
cellulose
what part of a hair contains its scales
cuticle
not a component of a nucleotide
double helix
The more DTRs a forensic scientist can characterize, the greater is the likelihood that they originated from the same individual
false
the means to detect the amelogenin gene are included in commercial STR kits used in crime labs because the gene allows determination of what
gender
the amount of acid phosphate in seminal fluid is ___ the amount of acid phosphatase in the blood
greater then
The sensitivity of the Takayama and Teichmann crystal tests for the identification of bloodstains is ________ the sensitivity of the Kastle-Meyer color test for bloodstain identification.
less than
the discriminating power of mtDNA is ___ the discriminating power of STR analysis
less than
DNA is a
polymer
which is true of fractured glass
radical cracks appear first...
Acid-phosphatase is a major constituent of what
semen
acid phosphatase is a major constituent of what
semen
blood in soil must be stored in a clean glass or plastic container and immediately frozen
true
the scale pattern is not a useful characteristic for individualizing a human hair
true
the stereoscopic microscope's wide view and great focus make it ideal for locating debris...
true
the variety of coatings applied to the body of an automobile adds...
true