DNA Replication

What is the role of DNA polymerase? (mark all that apply) ​

• Foster hydrogen bonds

• Foster phosphoester bonds

• Add free nucelotides

• Remove current phosphates

• Stabilize the DNA strand for replication

DNA replication takes place in eukaryotic cells during which phase?

• G1

• S

• M

• G0

What is the purpose of DNA replication?

• Cut the DNA 

• Make more cells

• Apoptosis

• Duplicate the DNA

What do we call DNA replication since new DNA has 1 parent strand and 1 new strand?

• Conservative 

• Semiconservative 

• Dispersive

Which enzyme is responsible for adding nucleotides?

• Topoisomerase

• DNA Polymerase

• Ligase

• Primase

This enzyme is capable of breaking Hydrogen bonds found between the bases of DNA

• Topoisomerase

• DNA Helicase

• DNA Polymerase

• Exonuclease

Which enzyme seals okazaki fragments together on the lagging strand?

• Topoisomerase

• Helicase

• Polymerase

• Ligase

Why is it crucial that living things are able to replicate their DNA?

• Each cell must have its own DNA

• Less copies of DNA are needed when a new cell is created

• A cell needs multiple copies of DNA

• Only muscle cells need DNA 

Tags

NGSS.HS-LS1-4

NGSS.HS-LS3-2

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