All Forensics TSA, TSA Forensics Exam
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Autopsy - Answer✔The internal and external examination of a body after death. An autopsy is
performed to confirm or determine the cause of death and establish other pre-death conditions,
such as the type of food last consumed and the time it was consumed.
Blood Splatter - Answer✔The pattern of blood that has struck a surface. This pattern can provide
vital information about the source of the blood. Can help determine the size and type of wound,
the direction and the speed with which the perpetrator or victim was moving, and the type of
weapon used to create the blood spill.
Caliber - Answer✔The diameter of the bore of a rifled firearm, usually expressed in hundredths
of an inch or in millimeters.
Composite Drawing - Answer✔A sketch of a suspect produced from eyewitness descriptions of
one or more persons.
Criminology - Answer✔The study of criminal activity and how it is dealt with by the law.
DNA - Answer✔Deoxyribonucleic acid. Double helix strand. Genetic code (fingerprint). 50%
from mom and 50% from dad. ACGT.
DNA Electrophoresis - Answer✔The technique by which DNA fragments are placed in a gel and
charged with electricity. An applied electric field then separates the fragments by size, as part of
the process of creating a genetic profile.
DNA Profiling - Answer✔The process of testing to identify DNA patterns or types. In forensic
science this testing is used to indicate parentage or to exclude or include individuals as possible
sources of bodily fluid stains (blood, saliva, semen) and other biological evidence (bones, hair,
teeth)
Fingerprint - Answer✔The unique patterns created by skin ridges found on the palm sides of
fingers and thumbs.
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Forensic Science - Answer✔The application of science to law. The application of science to
those criminal and civil laws that are enforced by police agencies in a criminal justice system.
The focus of forensics is the crime lab. The crime lab uses the principles and technique of
biology, chemistry, physics, geology, anthropology, and other sciences in order to place physical
evidence into a professional discipline.
Accuracy - Answer✔the degree of conformity of a measured quantity to its actual (true) value.
Acetone - Answer✔a colorless, highly flammable chemical compound used as an organic
solvent, an ingredient in many lacquer thinner compounds and adhering liquids.
Accelerant - Answer✔an agent, often an ignitable liquid, that acts to initiate a fire or increase its
rate of spread.
Algor mortis - Answer✔the postmortem cooling of the body.
Ante mortem - preceding death Antigens - Answer✔foreign substances in the body that are
capable of causing disease.
Arson - Answer✔the intentional and unlawful burning of a building or other property.
Asphyxiation - Answer✔a medical term for suffocation, which leads to lack of oxygen in the
blood.
Back spatter - Answer✔blood directed back toward the source of energy or force that caused the
spatter; often associated with entrance gunshot wounds.
Ballistics - Answer✔branch of physics that deals with the flights of projectiles.
Base pair - Answer✔combination of 2 nucleotides (A and T or G and C) held together by weak
hydrogen bonds; the DNA double helix is formed when a base pair of nucleotides in the DNA
strands are connected by these bonds.
Bile - Answer✔a digestive fluid made by the liver and stored in the gallbladder that helps digest
fats.
Blood borne pathogens - Answer✔pathogenic microorganisms in blood or other body fluids that
can cause disease in people. These pathogens include, but are not limited to, hepatitis B virus
(HBV) and human immunodeficiency virus (HIV) in all of its forms.
Bloodstain - Answer✔transfer resulting when liquid blood comes into contact with a surface.
Cause of death - Answer✔disease or injury that initiates the lethal train of events leading to
death.
Cerebral edema - the presence of a large amount of water in the spaces of the brain. - Answer✔
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