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Forensic Science Final Exam Review
When two objects touch, there is a transfer of material from one to the other. This trace evidence is the basis of
forensic science. What is the idea known as?
A. Locard's Principle
B. Bertillon’s Principle of Transference
C. Forensic Law
D. Murphy’s Law of Contact
Forensic anthropology involves the retrieval and identification of human remains. A skeleton provides a lot of information
about the deceased. Which of the following is not able to be deduced from a modern human skeleton?
A. Intelligence
B. Ethnic background
C. State of health
D. Race
If you know what to look for, you can tell a male from a female skeleton. Which of the following statements is not
true?
A.The male skull is usually larger than the female
B.The female pelvis is usually narrower than the male one
C.The female chin is usually more rounded or pointed than the male chin
D.The male skull has a larger brow ridge
Forensic odontology involves the study of teeth. When old skeletons are found, the teeth are an important source of
information. In such cases, which of the following statements is true?
A. Teeth are a good source of DNA for forensic analysis.
B.Teeth can indicate a person's occupation and ethnic background.
C.Forensic scientists can usually tell the victim's age by their teeth.
D.All 3 statements are true.
When identifying victims of disasters, such as plane and train crashes, approximately 93 percent of identifications are
made on the basis of which characteristic?
A. Dental records
B.DNA analysis
C.Skeletal features
D.Personal belongings
In Knoxville, Tennessee, there is a research facility, popularly known as 'the Body Farm', where research is conducted
into the nature of human decomposition and the factors which affect the rate at which it occurs. Who was responsible
for the creation of this facility?
A.William Bass
B.William Clinton
C.Bill Grissom
D.Ted Bundy
What is studied in forensic entomology?
A.Pollen spores
B.Fibers
C.Blood
D.Insects
Which of the following substances is often used to develop latent fingerprints?
A.Alcohol
B.Sticky tack
C.Super glue
D.Nail polish remover
When analysing fibres, which of the following characteristics is the most important?
A.Colour
B.Fiber composition
C.Length
D.Diameter
In forensics, criminologists use AFIS to search an online database for fingerprint matches. What does AFIS stand for?
A.Automated Fingerprint Identification System
B.Auto Fingerprint Intelligence System
C.Actual Fingerprint Identification System
D.Automated Foot and Fingerprint Identification System
This chemical can be used to detect blood, even if it's been wiped from a surface.
A.Luminol
B.Bleach
C.CO2
D.Cyanide
Which base pairs are found in DNA?
A. A, K, T and G
B. A, T, D and G
C. A, G, C and T
D. A, U, C and G
What does the term genome refer to?
A. All of the proteins expressed in an organism
B. The complete set of information in an organism's DNA
C. The set of genes turned on in an organism, tissue, or cell
D. Its kind of like a gnome
Which of the following is true for most genes?
A. A gene is a segment of DNA that contains the instructions for making a particular protein, like eye colour.
B. A gene is a segment of DNA that contains the instructions for making a particular RNA.
C. A gene is a region of DNA that controls a discrete hereditary characteristic of an organism.
D. All of the above.
Which of the following is the correct matching of base pairs in DNA?
A. Adenine–Guanine and Thymine–Cytosine
B. Guanine–Cytosine and Adenine–Cytosine
C. Adenine–Thymine and Guanine–Cytosine
D. Guanine–Thymine and Adenine–Cytosine
Which is not a component of blood?
A. Red blood cells
B. White blood cells
C. Platelets
D. Arteries
Blood Transfusions can only be safely given to…
A. Anyone in your family
B. Someone with a compatible blood type
C. Someone with the same blood type
D. Anyone in who has lost blood
Which of the following acronyms refers to a computer database of DNA profiles?
A.CODIS
B.NIBIN
C.AFIS
D.FBI
A “V” shaped pattern is typically associated with:
A.Hit and run cases
B.Drive-by shootings
C.Assault cases with blood spatter evidence
D.Arson cases
High velocity impact blood spatter stains are generally of what size?
A.Larger in size than medium velocity spatter
B.Larger in size than low velocity spatter
C.Smaller in size than low velocity spatter
D.A and C
Name the following fingerprint pattern on the right:
A.Ulnar loop
B.Plain whorl
C.Radial loop
D.Tented arch
If one strand of the DNA molecule has the base sequence -AACGTG-, what would be the base sequence on the other
strand?
A.TTGCTA
B.TAGCAC
C.TTGCAC
D.CCTAGA
Each person’s DNA is:
A.Completely individual to the person except for twins (identical and fraternal)
B.Found only in bodily fluids
C.Individual to the person except for identical twins
D.Identical to their parents and siblings
Which of the following is not a component of the fire triangle?
A.Fuel
B.Oxygen
C.Ignition temperature
D.Carbon dioxide
What is the title of the scientist that studies bones?
A.Forensic entomologist
B.Forensic anthropologist
C.Forensic oenologist
D.Forensic arson investigator
Match the following terms with their definitions:
1.
2.
3.
4.
5.
Suspect
Point of origin
Accomplice
Secondary crime scene
Alibi
A.
B.
C.
D.
E.
F.
G.
Person that aids another in the commission of a crime
Location where a fire starts
Initial crime scene
Type of defense used to be eliminated as a suspect
A location related to the initial crime scene
Main person of interest in a crime
Person that witnesses a crime
True or False
_______
Chromatography is the separation technique used to separate pigments in ink.
_______
A facial composite is a drawing or sketch done to represent a suspect.
_______
Forensic scientists can never prove that they are absolutely right.
_______
DNA evidence is only usable for 10 years, after that it disintegrates and is no longer useful.
_______
A forensic odontologist uses a victim's teeth to try and identify the body.
Long Answer
1.
Explain why eye witness testimony can be deemed inaccurate. List as many reasons as possible.
-bad memory
-memory can be distorted because of fear
-bad eyesight
-different perceptions
-different backgrounds (ethnic and otherwise)
2.
How can you tell the difference between an accidental fire and a deliberate arson? List as many differences as you can.
-
V shaped pattern
-
Smell of accelerant
-
Signs of a cover up or robbery
-
Look at electrical outlets
3.
List the 4 steps that need be followed for an accurate crime scene procedure.
4.
Complete the matching DNA sequence:
INITIAL DNA SEQUENCE:
MATCHING DNA SQUENCE:
5.
A–T–C–G–A–T–G–A–G–G–C
________T- A- G- C- T- A- C- T- C- C- G
Analyse the following collection of DNA fingerprints and explain who you believe
committed the sexual assault based on the DNA provided.
Suspect 1, all DNA markers match
6.
What can you tell about a person based on their bones? List 3 characteristics.
-race, gender, age, medical history
7.
What are the three main types of fingerprints? Know the main subtypes as well.
-arch (Tented), loop (radial and ulnar) and whorl
8.
What method is used to lift and compare footprints in soil?
-plaster of paris
9.
What liquid is used in chromatography? How does it work?
-alcohol, as it wicks up the filter paper, the pigments get dissolved and move different distances
10. How can age be determined using bones?
-based on when various bones fuse together, you can tell the relative age of the person