Forensics DNA

Restriction enzymes are used to ___ DNA.

• glue together
• cut
• reconnect
• exchange

Which shows the correct complementary base pairing for DNA?

• C-A, T-G
• A-G, C-T
• C-G, U-A
• T-A, G-C

What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

Name this structure

• double helix
• nucelotide
• twisted ladder
• hydrogen bond

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

Which of the following displays the correct order of PCR DNA amplification? 
1. Primers anneal themselves to certain sequences
2. DNA is denatured by heating to 94 degrees C
3. Free nucleotides attach and build the strand
4. DNA is placed into solution with primers and nucleotides

• 4-2-3-1
• 2-4-1-3
• 2-4-3-1
• 4-2-1-3

Number of chromosomes in all human body cells.       

• 2
• 23
• 46
• 92

Section of a chromosome that determines traits. (small segments of DNA) 

• Characteristic
• phenotype
• gene
• karyotype

Terri is creating a model of DNA, which of these shapes illustrates how her model should look? 

• A
• B
• C
• D