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