The DNA analysis method used in most forensic criminal investigations is
(PCR) Polymerase Chain Reaction
100
What is the first task completed in the investigation of a crime scene?
The area is secured and all potential witnesses are held for
questioning
100
What is the singles most important factor that has contributed to the increase of crime labs in the US?
Solving crimes relies more on DNA analysis
100
What is the most important factor in the timing of the developmental cycle of an insect?
Temperature
100
Define Forensics
The application of science to law
200
Which substance is used to separate DNA fragments during the creation of a DNA profile?
Gel
200
When police investigators are collecting evidence, they put on
protective suits
200
What is the responsibility of the first officer on the scene?
Apprehend the suspect
200
What is the thing no two people have the same of, except for identical twins?
DNA
200
Invisible fingerprints that appear on a piece of paper or check are known as?
latent prints
300
The minimum number of loci that must be studied to confirm a forensic DNA match is
5
300
A general feature that distinguishes human hair from animal hair is that human hair tends to have
consistent colour along the length of the shaft
300
What does the notes taken at a crime scene need to include? (3)
A. the time all evidence is found
B. the location of the evidence when found
C. the officer finding the evidence
300
The three main types of fingerprints are?
loop, whorl, arch
300
How can a scientist tell if a hair has been forcibly removed?
The root attached to the hair shaft will probably be broken or damaged.
400
DNA Match Probability Ratio = 1 in 2 000 000 000
What does this probability ratio indicate about the DNA match?
One other person in 2 billion could have the same DNA pattern
400
Fibre evidence is often found at crime scenes where there has been
Fibre evidence is often found at crime scenes where there has been
400
How can cross contamination be prevented?
Packaging all materials seperately
400
One way forensic investigators might lift a fingerprint found at a potential crime scene.
fuming, talc powder, tape lifting
400
If small drops of blood are found at the scene and form distinctly round formations, do they indicate that some one was bleeding from a high distance or were they bleeding close to the ground?
bleeding close to the ground
500
The DNA samples registered in Canada’s National DNA Data Bank come from crime scenes and
convicted criminals
500
What type of trace evidence would most likely be found at the scene of a hit and run collision?
glass and paint fragments
500
What is the most expensive crime in the US?
arson
500
What is entomology?
the application and study of insects and spiders to criminal matters, usually to determine the time of death
500
What does DNA stand for? Name three biological sources of DNA
Deoxyribonucleic acid.
Blood, Saliva, Tissues or other bodily fluids