DNA Replication

The enzyme that unzips the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

DNA replication results in two DNA molecules,

• each one with two original strands
• each one with two new strands
• each one with one new strand and one original strand
• one with two new strands and the other with two original strands

Which enzyme fixes the Okazaki fragments?

• Helicase

• Polymerase

• Ligase

• Primerase

Which enzyme is responsible for adding nucleotides?

• Helicase

• DNA Polymerase

• Ligase

• Primase

Based on the diagram, the enzyme (represented in gray) is most likely...

• DNA polymerase

• Ligase

• Primase

• Helicase

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

• DNA Polymerase

• Primase

• Helicase

• RNA Polymerase

Okazaki fragments are found on the _______________ strand

• Leading

• Lagging

DNA is built in this direction

• 5^' to 3' (new nucleotides added to the 3' end)

• 3' to 5' (new nucleotides added to the 5' end)

• 3' to 5' (new nucleotides added to the 3' end)

• 5^' to 3' (new nucleotides added to the 5' end)

DNA Replication occurs during which phase of the cell cycle?

• G ₁ phase

• S phase

• G ₂ phase

• Mitotic phase

Which letter in the picture below depicts the leading strand in DNA replication?

• A

• C

• B

• None of the above