Final

The minerals found in different soil samples cannot effectively be used to determine whether or not they have the same origin. True or False

The cortex of hair derives its major forensic importance from the fact that it contains: DNA Pigments Medullae Scales

After a blood sample is collected for alcohol testing, a(n) ____ is added to stop the blood from clotting. Fuel cell Anti-coagulant Preservative Monochromator

What is the logical first step in soil analysis? Examination of minerals and rocks under high-power magnification Use of density-gradient tube technique Comparison of dried soil sample for color and texture Examination for presence of debris under low-power magnification

It is a virtual certainty that faces two fabrics share a common origin if their fibers: Can be fitted together at their torn edges Have the same color Appear identical in cross section Have the same situations

Emission spectroscopy measures the frequency of light emitted by an atom when one of its electrons moves to a higher orbital True or False

The toxicologist’s capabilities are NOT directly dependent on the input from the: Attending physician Medical examiner Case prosecutor Police

PCR is a technique that: Provides a statistical analysis of the nitrogenous-base pairings Virtually eliminates operator error from DNA-analysis Produces information regarding the sequence of nitrogenous bases Can produce many exact copies of segments of DNA

IN the PCR process, the first step is to heat the DNA strands. This is to permit the: Double-stranded molecules to separate completely Hybridization to take place Process to take place without DNA degradation DNA to coil very tightly in the helical shape

A fiber whose microscopic appearance includes being ribbon-like in shape (flat) with twists at irregular intervals is: Linen Kapok Polyester Cotton

Upon entering the bloodstream, heroin is almost immediately metabolized into: Morphine Opium Cocaine Procaine

The use of which drug will NOT lead to physical dependence? Alcohol Cocaine Barbiturates Heroin

Which is an initiating explosive often used in detonators? PETN Dynamite TNT Lead azide

The clumping together of red blood cells by the action of an antibody is known as: Clotting Radioimmunology Serology Agglutination

Duquenois-Levine solutions were used on a sample and the chloroform layer turned purple. This suggests that the tested substance is: Heroin Valium Cocaine Marijuana

Which is available in commercial form as fertilizer? Triacetone triperoxide Ammonium nitrate Diazodintrophenol Potassium chlorate

The DOT set the maximum allowable blood alcohol concentration for commercial truck and bus drivers at: 0.04% 0.02% 0.05% 0.08%

Chromosomes are the fundamental units of heredity: True or False

A fuel can only achieve combustion in: The gaseous state A liquid-solid phase The liquid state The solid state

Which is a technique used to screen objects for the presence of explosive residues? X-ray diffraction Mass spectrometry Ion-mobility spectrometry Infrared spectrophotometry

How many different bases are associated with the makeup of DNA? 6 3 4 5

The emission spectrograph is used to determine Crystalline structure of a substance Elemental composition of a substance Weight of a substance Mass of a substance

The variety of coatings applied to the body of an automobile adds significant diversity to automobile paint and contributes to the forensic significance of automobile paint comparisons True or False

In DNA replication, polymerases: Separate the strands of the double helix Enable the strands to unwind from the helix Help assemble the new DNA strands in proper base sequence All of the above