AP Biology Unit 6

Which of these is found in RNA but not DNA?

• Uracil
• Cytosine
• Guanine
• Thymine

Which of these utilize 3 H-bonds in DNA structure?

• Guanine, Cytosine

• Adenine, Thymine

• Guanine Only

• Adenine Only

How can DNA be described?

• Anti-parallel

• Read 5' to 3'

• Single Stranded

• Parallel

What is the backbone of DNA made of?

• Amino Acids

• H2O molecules

• Sugar and Phosphate

• Sugars only

What bond holds two strands of DNA together?

• H-Bond

• Covalent Bond

• Ionic Bond

• Peptide Bond

Which of these unwinds the DNA strand during replication?

• DNA Polymerase

• Helicase
• RNA Polymerase

• Ligase

How is the leading strand of DNA synthesized?

• Continuously

• Discontinuously

• Through Okazaki Fragments

• 4' to 5'

What is the function of primers during DNA replication?

• They indicate a starting point for synthesis

• They stabilize the structure of the DNA

• They check for mistakes during synthesis

• They reverse the direction of synthesis

Which of these are the result of the synthesis of the lagging strand?

• Primer Fragments

• Okazaki Fragments

• Replication Forks

• Lagging Fragments

Which of these synthesize RNA from DNA?

• DNA Polymerase

• RNA Polymerase

• Ligase

• Helicase