AP Bio Insta-Review

Which enzyme connects the Okazaki fragments (lagging)

• Helicase

• Ligase

• Polymerase

• Topoisomerase

What is at the 5’ end of DNA?

• Hydrogen

• Hydroxyl

• Nitrogenous Base

• Phosphate

What is at the 3’ end of DNA?

• Hydrogen

• Hydroxyl

• Nitrogenous Base

• Phosphate

Describe the directionality of DNA

• Antiparallel

• Parallel

• Perpendicular

• Single Stranded 5’ to 3’

What is the enzyme responsible for breaking hydrogen bonds between nitrogenous bases?

• DNA polymerase

• Helicase

• Ligase

• Primase

What enzyme is responsible for synthesizing RNA start?

• DNA polymerase

• Helicase

• Ligase

• Primase

What enzyme is responsible for making the new DNA strand?

• DNA polymerase

• Helicase

• Ligase

• Primase

Which direction is DNA read?

• 3’ to 5’

• 5’ to 3’

• Right to Left

• Left to Right

Which direction is DNA synthesized?

• 3’ to 5’

• 5’ to 3’

• Right to Left

• Left to Right

Which strand is formed continuously into the replication fork?

• Lagging strand

• Leading strand