DNA Replication

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

• DNA Polymerase

• DNA Primase

• DNA Helicase

• RNA Polymerase

In what direction does the Leading strand run?

• 3' ----> 5'

• 5' -----> 3'

• It doesn't matter

• Both directions

Each DNA molecule created contain one NEW strand and one OLD strand

• True

• False

Okazaki fragments are found on the _______________ strand

• Leading

• Lagging

This enzyme ONLY works in one direction which is 5'------> 3'

• DNA Polymerase

• DNA Helicase

• Topoisomerase

• Telomerase

Okazaki fragments are unified into a single continuous strand by the use of this enzyme

• DNA Helicase

• DNA Ligase

• Topoisomerase

• Telomerase

DNA replication results in

• 2 completely new DNA molecules

• 2 DNA molecules that each contain a strand of the original

• 1 new DNA molecule and 1 old

• 1 new molecule of DNA

Tags

NGSS.HS-LS3-2

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

• DNA polymerase I

• DNA polymerase III

• Helicase

• Ligase

Which enzyme fixes the Okazaki fragments in the lagging strand?

• Helicase

• Polymerase

• Ligase

• Primerase

What are the gaps between the newly synthesized DNA on the lagging strand called?

• Okazaki fragments

• Polymer gaps

• Helicase fragments

• Acidic gaps