Forensics: DNA

DNA in blood comes from:

• white blood cells
• platelets
• plasma
• red blood cells

The structure of DNA is a:

• triple helix
• double helix
• single helix
• what the heck is a helix

The male determines the sex of the child

• True
• False
• sometimes

Which of the following are not sources of DNA?

• Blood
• Semen
• Hair
• Clothes

What does CODIS stand for?

• Criminal Offense DNA Index System
• Criminal Offensive DNA Index Securities
• Combined DNA Index Securities
• Combined DNA Index System 

Adenine (A) pairs with Guanine (G), Cytosine (C) pairs with Thymine (T)

• True
• False

How many STR markers/loci does the FBI use to identify criminals in America?

• 17
• 4
• 26
• 13

For vWA marker/loci, Mom is 12,15 and Dad is 15, 17. What is a possible combination for the son?

• 12, 12
• 13,17
• 17, 17
• 15, 15

The repeating units in a DNA molecule are called:

• amino acids
• nucleotides
• monosaccharides
• fatty acids

If one side of a DNA strand is A-A-T-C-G-G-A, what would the other side be?

• A-A-T-C-G-G-A
• G-G-C-A-T-T-AG
• T-T-A-G-C-C-T 
• C-C-G-A-T-T-C