Chapter 7 & 8 test

The purpose of PCR

• cutting DNA
• creating RFLPs
• amplifying/copy DNA
• reversing the charge of DNA

Based on these results whose blood was found in the blood stain at the crime scene?

• Bob
• Sue
• John
• Lisa

The computerized database used to store DNA information is: 

• AFIS
• NIBIN
• CODIS
• PDQ

Where is DNA found in the body?

• Cells nucleus
• Heart
• Cartilage
• Muscle

Which suspect matches the sample taken from the crime scene?

• Suspect 1
• Suspect 2
• Suspect 3
• Suspect not included

Why type of evidence is DNA?

• Class
• Trace
• Individual
• Direct

Biological evidence is used in forensics for identification purposes. Biological evidence includes:

• blood

• saliva

• urine

• All of these choices

The process of DNA Fingerprinting is based on the fact that

• everyone has the exact same DNA.

• no 2 people, except identical twins, have exactly the same DNA as someone else.

• most genes are dominant.

• None of the other answer choices are correct.

The pointed end of a bloodstain always faces:

• toward the position of the blood source.

• in its direction of travel.

• opposite its direction of travel.

• toward the direction from which the force came.

A blood droplet deposited at an angle of impact of about 90º (directly vertical to the surface) will:

• always be 3 cm in diameter.

• be approximately circular in shape.

• feature a tail showing the directionality.

• be elliptical in shape.