DNA Replication Enzymes

Enzymes responsible for relieve strand of double helix

• Helicase

• Ligase

• Polymerase

• Topoisomerase

Enzymes responsible for breaking H bonds between strands

• Helicase

• Ligase

• Polymerase

• Topoisomerase

Which enzyme connects the Okazaki fragments (lagging)

• Helicase

• Ligase

• Polymerase

• Topoisomerase

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

Which strand is formed discontinuously away from the replication fork?

• Lagging strand

• Leading strand

What is the role of DNA polymerase in DNA replication?

• To unwind the DNA double helix

• To synthesize new DNA strands

• To join Okazaki fragments

• To proofread the new DNA strands

Tags

DOK Level 1: Recall

Which enzyme joins Okazaki fragments during DNA replication?

• Helicase

• DNA polymerase

• Ligase

• Primase

Tags

DOK Level 1: Recall

Discuss the role of enzymes in DNA replication.

• They provide the energy required for replication

• They catalyze the formation of the DNA backbone

• They ensure the accuracy of the replication process

• They have no role in DNA replication

Tags

DOK Level 2: Skill/Concept

Which enzyme is responsible for unwinding the DNA double helix during replication?

• Helicase

• Ligase

• Polymerase

• Topoisomerase