DNA Structure & Replication

DNA Structure & Replication

Multiple Choice

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

Multiple Choice

What does DNA stand for?

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

Multiple Choice

DNA is a polymer made of:

• Nucleotides
• Ribosomes
• Purines
• Pyrimidines

Multiple Choice

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogen base
• sugar, oxygen, nitrogen base
• sugar, phosphate, nitrogen base
• sugar, phosphate, protein

Multiple Choice

Nucleotides are made up of a sugar, phosphate, and..?

• nitrogenous base
• nucleic acid
• cholesterol
• fatty acid

Multiple Choice

The "Double Helix Model" of DNA was proposed by:

• Watson & Crick
• Meselson & Stahl
• Beadle & Tatum
• Gosling & Watkins

Multiple Choice

The two strands of DNA are held together by:

• Hydrogen Bonds
• Phosphodiester Bonds
• Glycolsyl Bonds
• Glycosidic Linkages

Multiple Choice

Guanine (G) bonds with ______________.

• Adenine (A)

• Guanine (G)

• Cytosine (C)

• Thymine (T)

Multiple Choice

Adenine (A) bonds with ______________.

• Guanine (G)

• Thymine (T)

• Cytosine (C)

• Adenine (A)

Multiple Choice

What is the purpose of DNA replication?

• Cut the DNA 
• Make more cells
• Apoptosis
• Duplicate the DNA

Multiple Choice

D.N.A replication start during which of the following phases?

• G1

• S

• G2

• M

Multiple Choice

The enzyme that unwinds the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

Multiple Choice

Which enzyme is responsible for adding nucleotides?

• Topoisomerase
• DNA Polymerase
• Ligase
• Primase

Multiple Choice

What do we call DNA replication since new DNA has 1 parent strand and 1 new strand?

• Conservative 
• Semiconservative 
• Dispersive

Multiple Choice

Which enzyme is responsible for checking DNA for errors, and fixing it?

• DNA Polymerase

• DNA Primase

• DNA Helicase

• RNA Polymerase