Definitions
What is Rigor Mortis?
The stiffening of the joints that occurs a couple of hours after death, usually lasting from one to four days.
What information does the report include?
The date, time, name of investigator, compass directing North, rough sketches of the scene and perpetrator's point of entry.
The National Data base in the United States of DNA fingerprints is called
CODIS
What are the three things an investigator looks at to match the bullet to the crime scene?
Specific grooves left on the bullet casing, trajectory and fingerprints.
What are the three types of fingerprints called?
Loop, whorl and arch.
Restriction Enzyme
Molecular scissors that cut DNA at specific base sequences.
True or False- An evidence log and chain of custody does not have to be attached to the evidence container.
False!
Which tissue samples are used for DNA fingerprinting?
Bones, skin, and blood.
The two most useful properties of glass for forensic comparisons are:
Density and Refractive Index.
What does DNA stand for?
Deoxyribonucleic Acid.
Polymerase Chain Reaction
A method used to make multiple copies of a specific segment of DNA
What are three examples of trace evidence?
Hair on a brush, blood drops on a shirt, fingerprints on glass.
The mitochondrial DNA is inherited from who?
Only from your mother.
Fractures emanating outward from a hole are called:
Radial.
What is the first bug/insect to gather on a dead body?
Blow Fly Larvae.
Amorphous
Solids that have their atoms arranged randomly.
What is the name of the tapes used to lift fingerprints or footwear impressions/ Lift powdered impressions from non-porous surfaces?
Adhesive lifter.
The method of separating the molecules within an electric field, based on their size, is called:
Gel Electrophoresis
The evidence that supports the fatal shot came from the rear:
The rear of the skull shows extensive damage.
When the trigger of a semi-automatic pistol is pulled, what does the gun do?
Fires once and reloads.
Polymerase Chain Reaction
A method used to make multiple copies of a specific segment of DNA.
Individual evidence.
What did Watson and Crick describe the DNA molecule as?
A double helix.
The metal tube at the end of a gun that the bullet is propelled out of:
Barrel
What is Algor Mortis
2c/hr drop in body temp for the first 12 hrs.