DNA RNA DNA Replication

What is the backbone of DNA made of?

• Nitrogen bases

• Amino acids

• Double H

• Sugar & Phosphate

The separation of the two single strands of DNA creates a ‘Y’ shape?

• enzyme

• unzip

• A replication fork

This enzyme helps helicase unzip DNA by relieving supercoiling

• Topoisomerase

• Exonuclease

• DNA Primase

• DNA Polymerase

This enzyme is responsible for creating telomeres added to the ends of DNA

• Topoisomerase

• Telomerase

• DNA Helicase

• DNA Primase

What is the LAST step of the completion of DNA replication?

• Telomeres are added to ends of DNA

• Ligase glues Okazaki fragments

• DNA polymerase proofreads

• Topoisomerase relieves supercoiling

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